Recognised as Number

1,426

Positive
Even
Composite
4 digits

1,426 is an even 4-digit integer and a composite number. It has 8 divisors and a digital root of 4.

Number properties

ParityEvendivisible by 2

SignPositive

PrimalityComposite

Absolute value1,426

Digit count4

Digit sum13

Digit product48

Multiplicative persistence3times the digit product can be taken before one digit is left

Digital root4repeated digit sum

PalindromicNoreads differently backwards

Happy numberNosquared-digit sums reach 1

Harshad numberNodivisible by its own digit sum

Factors & divisors

Prime factorisation2 × 23 × 31

Distinct prime factors32, 23, 31

Number of divisors8

Sum of divisors σ(n)2,304

Aliquot sum878sum of the proper divisors

ClassificationDeficientthe aliquot sum is less than the number

Euler's totient φ(n)660integers below n that share no factor with it

Carmichael function λ(n)330the smallest exponent with aˣ ≡ 1 for every unit; smaller than φ(n) = 660

Möbius function μ(n)−13 distinct prime factors, an odd number of them

SquarefreeYesno repeated prime factor

All divisors1, 2, 23, 31, 46, 62, 713, 1,4268 in total

Arithmetic

Previous number1,425

Next number1,427

Double2,852

Half713

Square2,033,476

Cube2,899,736,776

Square root37.762415177≈irrational, shown to 9 decimal places

Cube root11.255717259≈

Negation-1,426

Reciprocal0.0007012623≈

Representations

Decimal1,426

Binary1011001001011 bits

Octal2622

Hexadecimal592

Base 3613M

Roman numeralMCDXXVI

In wordsone thousand, four hundred and twenty-six

Ordinalone thousand, four hundred and twenty-sixth

Scientific notation1.426 × 10^3

Engineering notation1.426 × 10^3

In other bases

Ternary1221211base 3; the most digit-efficient integer base after e: 7 digits

Quinary21201base 5; one hand: 5 digits

Septenary4105base 7: 4 digits

Nonary1854base 9; each digit is two ternary digits: 4 digits

Duodecimal9aabase 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 3 digits

Vigesimal3b6base 20; hands and feet, and the Mayan and Yoruba systems: 3 digits

Sexagesimal23:46base 60; Babylonian, and still how an hour and a circle are divided: 2 digits

Balanced ternary1T00TT11digits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed

Negabinary1101010010110base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign

Bit-level

0000010110010010

Bit length11 bitsto write the magnitude

Set bits5the population count, or Hamming weight

Zero bits6within that length

Bit parityodd5 set bits, so odd; not the same as the number itself being even

Highest set bitbit 10worth 1,024

Lowest set bitbit 11 trailing zero

Power of twoNo

Bytes205 92

Gray code11101011011n XOR (n >> 1); successive values differ in exactly one bit

At each machine width

16-bit0000010110010010

32-bit00000000000000000000010110010010

64-bit0000000000000000000000000000000000000000000000000000010110010010

One's complement1111101001101101at 16 bits, every bit flipped

Bits reversed0100100110100000at 16 bits

Rotated left by 10000101100100100at 16 bits, wrapping

Shifted left by 1101100100100= 2,852, no wrap

Shifted right by 11011001001= 713, discarding the low bit

These bits as a double7.04537611 × 10^-321≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)

Nearest landmarks

Next prime1,427+1

Previous prime1,423−3

Distance to nearest prime1

Nearest square below1,369

Nearest square above1,444

Powers & multiples

1,426 to the power 22,033,476

1,426 to the power 32,899,736,776

1,426 to the power 44,135,024,642,576

1,426 to the power 55,896,545,140,313,376

First ten multiples1,426, 2,852, 4,278, 5,704, 7,130, 8,556, 9,982, 11,408, 12,834, 14,260

Powers of twoBetween 2^10 (1,024) and 2^11 (2,048)

Divisibility tests

Divisible by 2Yes

Divisible by 3No, remainder 1

Divisible by 4No, remainder 2

Divisible by 5No, remainder 1

Divisible by 6No, remainder 4

Divisible by 7No, remainder 5

Divisible by 8No, remainder 2

Divisible by 9No, remainder 4

Divisible by 10No, remainder 6

Divisible by 11No, remainder 7

Divisible by 12No, remainder 10

Divisible by 100No, remainder 26

Collatz (3n + 1) trajectory

Steps to reach 126the total stopping time

Highest value reached3,6162× the starting value

Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven

First steps1,426 → 713 → 2,140 → 1,070 → 535 → 1,606 → 803 → 2,410 → 1,205 → 3,616 → …

Last steps… → 32 → 16 → 8 → 4 → 2 → 1

As a percentage & fraction

As a percentage142,600%

1,426% as a decimal14.26

1,426% of 1001,426

1,426% of 1,00014,260

As a fraction of 1001,426/100

Read another way

As seconds23 minutes and 46 seconds

As bytes1.393 KiB

As a year1426 AD

As a 24-bit colour#000592

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Neighbouring numbers

Derived from 1,426

Nearby primes

1426 (year)

Common year
365 days
15th century
Horse

1426 was a common year of 365 days. It began on a Sunday and ended on a Sunday. Easter Sunday fell on 2 April.

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Structure of the year

Leap yearNonot divisible by 4

Days in the year365

Days in February28

1 January fell on aSunday

31 December fell on aSunday

Century15th century

Decade1420s

Chinese zodiacHorse

Easter Sunday2 April

Patterns forced by the calendar

Weekday counts52 of each, plus an extra Sunday365 days is 52 weeks and 1 day, and the remainder starts on the weekday 1 January falls on

Sundays53one of the extras

Mondays52

Tuesdays52

Wednesdays52

Thursdays52

Fridays52

Saturdays52

Friday the 13th2 of them13 January, 13 October

ISO weeks52an ordinary 52-week year

Same calendar as1415the most recent year whose calendar is identical, so a printed one could be reused

Calendar repeats in1437, 1443, 145411 years later, then again after that; the gap is 6, 11 or 28 years, broken by centuries that skip a leap year

Months of 1426

January31 days, starts Sunday

February28 days, starts Wednesday

March31 days, starts Wednesday

April30 days, starts Saturday

May31 days, starts Monday

June30 days, starts Thursday

July31 days, starts Saturday

August31 days, starts Tuesday

September30 days, starts Friday

October31 days, starts Sunday

November30 days, starts Wednesday

December31 days, starts Friday

Time references

These values depend on today’s date and change daily.

Unix timestamp at the start-17,166,988,800

Unix timestamp at the end-17,135,452,801

Years from now600 years ago

Days from today219,403 days since 1 January

The number 1426

As a number1,426

In wordsone thousand, four hundred and twenty-six

Roman numeralsMCDXXVI

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Neighbouring years

Key dates

Also reads as

#114422 (colour)

#114422
Green
Dark
Nearest: Dark olivegreen

#114422 is a green with RGB values 17, 68, 34 and HSL 140°, 60%, 17%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

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Colour values

#114422#114422

HEX#114422

HEX (short)#142

RGBrgb(17, 68, 34)

RGB (0–1)0.0667, 0.2667, 0.1333

RGB percentages6.7%, 26.7%, 13.3%

HSLhsl(140, 60%, 16.7%)

HSV / HSBhsv(140, 75%, 26.7%)

CMYK75%, 0%, 50%, 73.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,131,554

CSS custom property--colour: #114422;

Brightness & contrast

Relative luminance0.04369WCAG 2.x, 0 is black and 1 is white

Perceived brightness54.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.21:1

Contrast with white11.21:1WCAG normal text: AAA

Contrast with black1.87:1WCAG normal text: Fail

Greyscale equivalent#373737

Inverted#EEBBDD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#443E1Fno red cones; affects about 1% of men; ΔE 23.6 from the original

Deuteranopia#3E3924no green cones; the most common form, about 1% of men; ΔE 24.2 from the original

Tritanopia#00433Cno blue cones; rare, and affects men and women equally; ΔE 17.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.21:1WCAG large text: AAA

Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 23.8 Dark slate grey · ΔE 24.9 Sea green · ΔE 30.4 Dark green · ΔE 33.5 Teal · ΔE 33.9 Dim grey · ΔE 36

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 23.84, a distinctly different colour

Hue familygreen

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#441133

Analogous#194411, #11443C

Triadic#221144, #442211

Split complementary#3B1144, #44111A

Tetradic#111944, #441133, #443B11

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#4ED37A

Lighter +30%#30BE5F

Lighter +20%#25964B

Lighter +10%#1B6D36

Darker −10%#071B0E

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#064F1E

Less saturated −25%#1C3926

Channel breakdown

R17

G68

B34

Red17 (6.7%)

Green68 (26.7%)

Blue34 (13.3%)

Hue140°

Saturation (HSL)60%

Lightness16.67%

Dominant channelGreen

Hex per channelR 11 · G 44 · B 22

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Number properties

Factors & divisors

Arithmetic

Representations

In other bases

Bit-level

At each machine width

Nearest landmarks

Powers & multiples

Divisibility tests

Collatz (3n + 1) trajectory

As a percentage & fraction

Read another way

Keep nerding

Neighbouring numbers

Derived from 1,426

Nearby primes

Other readings

1426 (year)

Structure of the year

Patterns forced by the calendar

Months of 1426

Time references

The number 1426

Keep nerding

Neighbouring years

Key dates

#114422 (colour)

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else