Number
131,429
- Positive
- Odd
- Composite
- 6 digits
131,429 is an odd 6-digit integer and a composite number. It has 4 divisors and a digital root of 2.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value131,429
Digit count6
Digit sum20
Digital root2repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation167 × 787
Distinct prime factors2167, 787
Number of divisors4
Sum of divisors σ(n)132,384
Aliquot sum955sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)130,476integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 167, 787, 131,4294 in total
Arithmetic
Representations
Decimal131,429
Binary10000000010110010118 bits
Octal400545
Hexadecimal20165
Base 362TET
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsone hundred and thirty-one thousand, four hundred and twenty-nine
Ordinalone hundred and thirty-one thousand, four hundred and twenty-ninth
Scientific notation1.31429 × 10^5
Engineering notation131.429 × 10^3
Nearest landmarks
Powers & multiples
131,429 to the power 217,273,582,041
131,429 to the power 32,270,249,614,066,589
131,429 to the power 4298,376,636,527,157,725,681
131,429 to the power 539,215,342,962,127,812,728,528,149
First ten multiples131,429, 262,858, 394,287, 525,716, 657,145, 788,574, 920,003, 1,051,432, 1,182,861, 1,314,290
Powers of twoBetween 2^17 (131,072) and 2^18 (262,144)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 2
Divisible by 4No, remainder 1
Divisible by 5No, remainder 4
Divisible by 6No, remainder 5
Divisible by 7No, remainder 4
Divisible by 8No, remainder 5
Divisible by 9No, remainder 2
Divisible by 10No, remainder 9
Divisible by 11No, remainder 1
Divisible by 12No, remainder 5
Divisible by 100No, remainder 29
Collatz (3n + 1) trajectory
Steps to reach 1162the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps131,429 → 394,288 → 197,144 → 98,572 → 49,286 → 24,643 → 73,930 → 36,965 → 110,896 → 55,448 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage13,142,900%
131,429% as a decimal1,314.29
131,429% of 100131,429
131,429% of 1,0001,314,290
As a fraction of 100131,429/100
Read another way
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Derived from 131,429
Also reads as
#131429 (colour)
- #131429
- Blue
- Dark
- Nearest: Black
#131429 is a blue with RGB values 19, 20, 41 and HSL 237°, 37%, 12%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#131429#131429
HEX#131429
RGBrgb(19, 20, 41)
RGB (0–1)0.0745, 0.0784, 0.1608
RGB percentages7.5%, 7.8%, 16.1%
HSLhsl(237.3, 36.7%, 11.8%)
HSV / HSBhsv(237.3, 53.7%, 16.1%)
CMYK53.7%, 51.2%, 0%, 83.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,250,345
CSS custom property--colour: #131429;
Brightness & contrast
Relative luminance0.00799WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.11:1
Contrast with white18.11:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#ECEBD6
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.11:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#292813
Analogous#131F29, #1D1329
Triadic#291314, #142913
Split complementary#291D13, #1F2913
Tetradic#29131F, #292813, #13291D
Tints, shades & saturation
Channel breakdown
R19
G20
B41
Red19 (7.5%)
Green20 (7.8%)
Blue41 (16.1%)
Hue237.27°
Saturation (HSL)36.67%
Lightness11.76%
Dominant channelBlue
Hex per channelR 13 · G 14 · B 29
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Harmonies
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