Number

1,250

Positive
Even
Composite
4 digits

1,250 is an even 4-digit integer and a composite number. It has 10 divisors and a digital root of 8.

Number properties

ParityEvendivisible by 2

SignPositive

PrimalityComposite

Absolute value1,250

Digit count4

Digit sum8

Digital root8repeated digit sum

PalindromicNoreads differently backwards

Happy numberNosquared-digit sums reach 1

Harshad numberNodivisible by its own digit sum

Factors & divisors

Prime factorisation2 × 5^4

Distinct prime factors22, 5

Number of divisors10

Sum of divisors σ(n)2,343

Aliquot sum1,093sum of the proper divisors

ClassificationDeficientthe aliquot sum is less than the number

Euler's totient φ(n)500integers below n that share no factor with it

SquarefreeNohas a repeated prime factor

All divisors1, 2, 5, 10, 25, 50, 125, 250, 625, 1,25010 in total

Arithmetic

Previous number1,249

Next number1,251

Double2,500

Half625

Square1,562,500

Cube1,953,125,000

Square root35.355339059≈irrational, shown to 9 decimal places

Cube root10.77217345≈

Negation-1,250

Reciprocal0.0008≈

Representations

Decimal1,250

Binary1001110001011 bits

Octal2342

Hexadecimal4E2

Base 36YQ

Roman numeralMCCL

In wordsone thousand, two hundred and fifty

Ordinalone thousand, two hundred and fiftieth

Scientific notation1.25 × 10^3

Engineering notation1.25 × 10^3

Nearest landmarks

Next prime1,259+9

Previous prime1,249−1

Distance to nearest prime1

Nearest square below1,225

Nearest square above1,296

Powers & multiples

1,250 to the power 21,562,500

1,250 to the power 31,953,125,000

1,250 to the power 42,441,406,250,000

1,250 to the power 53,051,757,812,500,000

First ten multiples1,250, 2,500, 3,750, 5,000, 6,250, 7,500, 8,750, 10,000, 11,250, 12,500

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

Divisibility tests

Divisible by 2Yes

Divisible by 3No, remainder 2

Divisible by 4No, remainder 2

Divisible by 5Yes

Divisible by 6No, remainder 2

Divisible by 7No, remainder 4

Divisible by 8No, remainder 2

Divisible by 9No, remainder 8

Divisible by 10Yes

Divisible by 11No, remainder 7

Divisible by 12No, remainder 2

Divisible by 100No, remainder 50

Collatz (3n + 1) trajectory

Steps to reach 126the total stopping time

Highest value reached1,8761× the starting value

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

First steps1,250 → 625 → 1,876 → 938 → 469 → 1,408 → 704 → 352 → 176 → 88 → …

Last steps… → 5 → 16 → 8 → 4 → 2 → 1

As a percentage & fraction

As a percentage125,000%

1,250% as a decimal12.5

1,250% of 1001,250

1,250% of 1,00012,500

As a fraction of 1001,250/100

Read another way

As seconds20 minutes and 50 seconds

As bytes1.221 KiB

As a year1250 AD

As a 24-bit colour#0004E2

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Neighbouring numbers

Derived from 1,250

Nearby primes

1250 (year)

Common year
365 days
13th century
Dog

1250 was a common year of 365 days. It began on a Saturday and ended on a Saturday. Easter Sunday fell on 27 March.

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Structure of the year

Leap yearNonot divisible by 4

Days in the year365

Weeks in the year52ISO 8601 weeks; 28 December is always in the final week

Days in February28

1 January fell on aSaturday

31 December fell on aSaturday

Century13th century

Decade1250s

Chinese zodiacDog

Easter Sunday27 March

Months of 1250

January31 days, starts Saturday

February28 days, starts Tuesday

March31 days, starts Tuesday

April30 days, starts Friday

May31 days, starts Sunday

June30 days, starts Wednesday

July31 days, starts Friday

August31 days, starts Monday

September30 days, starts Thursday

October31 days, starts Saturday

November30 days, starts Tuesday

December31 days, starts Thursday

Time references

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

Unix timestamp at the start-22,720,953,600

Unix timestamp at the end-22,689,417,601

Years from now776 years ago

Days from today283,680 days since 1 January

The number 1250

As a number1,250

In wordsone thousand, two hundred and fifty

Roman numeralsMCCL

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Neighbouring years

Key dates

Also reads as

#112255 (colour)

#112255
Blue
Dark
Nearest: Dark slateblue

#112255 is a blue with RGB values 17, 34, 85 and HSL 225°, 67%, 20%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

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Colour values

#112255#112255

HEX#112255

HEX (short)#125

RGBrgb(17, 34, 85)

RGB (0–1)0.0667, 0.1333, 0.3333

RGB percentages6.7%, 13.3%, 33.3%

HSLhsl(225, 66.7%, 20%)

HSV / HSBhsv(225, 80%, 33.3%)

CMYK80%, 60%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,122,901

CSS custom property--colour: #112255;

Brightness & contrast

Relative luminance0.01919WCAG 2.x, 0 is black and 1 is white

Perceived brightness39.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.18:1

Contrast with white15.18:1WCAG normal text: AAA

Contrast with black1.38:1WCAG normal text: Fail

Greyscale equivalent#222222

Inverted#EEDDAA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002957no red cones; affects about 1% of men; ΔE 6.8 from the original

Deuteranopia#002354no green cones; the most common form, about 1% of men; ΔE 3.2 from the original

Tritanopia#002E37no blue cones; rare, and affects men and women equally; ΔE 33.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.18:1WCAG large text: AAA

Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22 Midnight blue · ΔE 24.5 Rebecca purple · ΔE 37 Black · ΔE 38.8 Steel blue · ΔE 41.4 Dark slate grey · ΔE 42

Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.99, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#554411

Analogous#114455, #221155

Triadic#551122, #225511

Split complementary#552211, #445511

Tetradic#551144, #554411, #115522

Tints, shades & saturation

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

Lighter +40%#5577DD

Lighter +30%#2A55D5

Lighter +20%#2244AA

Lighter +10%#193380

Darker −10%#09112B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#041C62

Less saturated −25%#1E2848

Channel breakdown

R17

G34

B85

Red17 (6.7%)

Green34 (13.3%)

Blue85 (33.3%)

Hue225°

Saturation (HSL)66.67%

Lightness20%

Dominant channelBlue

Hex per channelR 11 · G 22 · B 55

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1,250

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 1,250

Nearby primes

Other readings

1250 (year)

Structure of the year

Months of 1250

Time references

The number 1250

Keep nerding

Neighbouring years

Key dates

#112255 (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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