Number

1,350

Positive
Even
Composite
4 digits

1,350 is an even 4-digit integer and a composite number. It has 24 divisors and a digital root of 9.

Number properties

ParityEvendivisible by 2

SignPositive

PrimalityComposite

Absolute value1,350

Digit count4

Digit sum9

Digital root9repeated digit sum

PalindromicNoreads differently backwards

Happy numberNosquared-digit sums reach 1

Harshad numberYesdivisible by its own digit sum

Factors & divisors

Prime factorisation2 × 3^3 × 5^2

Distinct prime factors32, 3, 5

Number of divisors24

Sum of divisors σ(n)3,720

Aliquot sum2,370sum of the proper divisors

ClassificationAbundantthe aliquot sum exceeds the number

Euler's totient φ(n)360integers below n that share no factor with it

SquarefreeNohas a repeated prime factor

All divisors1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 90, 135, 150, 225, 270, 450, 675, 1,35024 in total

Arithmetic

Previous number1,349

Next number1,351

Double2,700

Half675

Square1,822,500

Cube2,460,375,000

Square root36.742346142≈irrational, shown to 9 decimal places

Cube root11.052094496≈

Negation-1,350

Reciprocal0.0007407407≈

Representations

Decimal1,350

Binary1010100011011 bits

Octal2506

Hexadecimal546

Base 3611I

Roman numeralMCCCL

In wordsone thousand, three hundred and fifty

Ordinalone thousand, three hundred and fiftieth

Scientific notation1.35 × 10^3

Engineering notation1.35 × 10^3

Nearest landmarks

Next prime1,361+11

Previous prime1,327−23

Distance to nearest prime11

Nearest square below1,296

Nearest square above1,369

Powers & multiples

1,350 to the power 21,822,500

1,350 to the power 32,460,375,000

1,350 to the power 43,321,506,250,000

1,350 to the power 54,484,033,437,500,000

First ten multiples1,350, 2,700, 4,050, 5,400, 6,750, 8,100, 9,450, 10,800, 12,150, 13,500

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

Divisibility tests

Divisible by 2Yes

Divisible by 3Yes

Divisible by 4No, remainder 2

Divisible by 5Yes

Divisible by 6Yes

Divisible by 7No, remainder 6

Divisible by 8No, remainder 6

Divisible by 9Yes

Divisible by 10Yes

Divisible by 11No, remainder 8

Divisible by 12No, remainder 6

Divisible by 100No, remainder 50

Collatz (3n + 1) trajectory

Steps to reach 1114the total stopping time

Highest value reached9,2326× the starting value

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

First steps1,350 → 675 → 2,026 → 1,013 → 3,040 → 1,520 → 760 → 380 → 190 → 95 → …

Last steps… → 5 → 16 → 8 → 4 → 2 → 1

As a percentage & fraction

As a percentage135,000%

1,350% as a decimal13.5

1,350% of 1001,350

1,350% of 1,00013,500

As a fraction of 1001,350/100

Read another way

As seconds22 minutes and 30 seconds

As bytes1.318 KiB

As a year1350 AD

As a 24-bit colour#000546

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Neighbouring numbers

Derived from 1,350

Nearby primes

1350 (year)

Common year
365 days
14th century
Tiger

1350 was a common year of 365 days. It began on a Thursday and ended on a Thursday. Easter Sunday fell on 5 April.

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Structure of the year

Leap yearNonot divisible by 4

Days in the year365

Weeks in the year53ISO 8601 weeks; 28 December is always in the final week

Days in February28

1 January fell on aThursday

31 December fell on aThursday

Century14th century

Decade1350s

Chinese zodiacTiger

Easter Sunday5 April

Months of 1350

January31 days, starts Thursday

February28 days, starts Sunday

March31 days, starts Sunday

April30 days, starts Wednesday

May31 days, starts Friday

June30 days, starts Monday

July31 days, starts Wednesday

August31 days, starts Saturday

September30 days, starts Tuesday

October31 days, starts Thursday

November30 days, starts Sunday

December31 days, starts Tuesday

Time references

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

Unix timestamp at the start-19,565,280,000

Unix timestamp at the end-19,533,744,001

Years from now676 years ago

Days from today247,158 days since 1 January

The number 1350

As a number1,350

In wordsone thousand, three hundred and fifty

Roman numeralsMCCCL

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Neighbouring years

Key dates

Also reads as

#113355 (colour)

#113355
Blue
Dark
Nearest: Dark slate grey

#113355 is a blue with RGB values 17, 51, 85 and HSL 210°, 67%, 20%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

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Colour values

#113355#113355

HEX#113355

HEX (short)#135

RGBrgb(17, 51, 85)

RGB (0–1)0.0667, 0.2, 0.3333

RGB percentages6.7%, 20%, 33.3%

HSLhsl(210, 66.7%, 20%)

HSV / HSBhsv(210, 80%, 33.3%)

CMYK80%, 40%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,127,253

CSS custom property--colour: #113355;

Brightness & contrast

Relative luminance0.03143WCAG 2.x, 0 is black and 1 is white

Perceived brightness49.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.89:1

Contrast with white12.89:1WCAG normal text: AAA

Contrast with black1.63:1WCAG normal text: Fail

Greyscale equivalent#2E2E2E

Inverted#EECCAA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#233556no red cones; affects about 1% of men; ΔE 3.7 from the original

Deuteranopia#192F54no green cones; the most common form, about 1% of men; ΔE 4.1 from the original

Tritanopia#003B40no blue cones; rare, and affects men and women equally; ΔE 22.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12.89:1WCAG large text: AAA

Contrast with black, large text1.63:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 26.4 Black · ΔE 31.8 Dark slateblue · ΔE 32.3 Steel blue · ΔE 33.3 Dim grey · ΔE 33.9 Slate grey · ΔE 35.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 26.39, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#553311

Analogous#115555, #111155

Triadic#551133, #335511

Split complementary#551111, #555511

Tetradic#551155, #553311, #115511

Tints, shades & saturation

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

Lighter +40%#5599DD

Lighter +30%#2A80D5

Lighter +20%#2266AA

Lighter +10%#194D80

Darker −10%#091A2B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#043362

Less saturated −25%#1E3348

Channel breakdown

R17

G51

B85

Red17 (6.7%)

Green51 (20%)

Blue85 (33.3%)

Hue210°

Saturation (HSL)66.67%

Lightness20%

Dominant channelBlue

Hex per channelR 11 · G 33 · B 55

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1,350

Number properties

Factors & divisors

Arithmetic

Representations

Nearest landmarks

Powers & multiples

Divisibility tests

Collatz (3n + 1) trajectory

As a percentage & fraction

Read another way

Keep nerding

Neighbouring numbers

Derived from 1,350

Nearby primes

Other readings

1350 (year)

Structure of the year

Months of 1350

Time references

The number 1350

Keep nerding

Neighbouring years

Key dates

#113355 (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

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