Number
142,049
- Positive
- Odd
- Prime
- 6 digits
142,049 is an odd 6-digit integer and a prime number. It has 2 divisors and a digital root of 2.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityPrime
Absolute value142,049
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 factorisation142,049
Distinct prime factors1142,049
Number of divisors2
Sum of divisors σ(n)142,050
Aliquot sum1sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)142,048integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 142,0492 in total
Arithmetic
Representations
Decimal142,049
Binary10001010101110000118 bits
Octal425341
Hexadecimal22AE1
Base 3631LT
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsone hundred and forty-two thousand and forty-nine
Ordinalone hundred and forty-two thousand and forty-ninth
Scientific notation1.42049 × 10^5
Engineering notation142.049 × 10^3
Nearest landmarks
Powers & multiples
142,049 to the power 220,177,918,401
142,049 to the power 32,866,253,130,943,649
142,049 to the power 4407,148,390,997,414,396,801
142,049 to the power 557,835,021,792,791,717,651,185,249
First ten multiples142,049, 284,098, 426,147, 568,196, 710,245, 852,294, 994,343, 1,136,392, 1,278,441, 1,420,490
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 5
Divisible by 8No, remainder 1
Divisible by 9No, remainder 2
Divisible by 10No, remainder 9
Divisible by 11No, remainder 6
Divisible by 12No, remainder 5
Divisible by 100No, remainder 49
Collatz (3n + 1) trajectory
Steps to reach 1219the total stopping time
Highest value reached1,213,5408× the starting value
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps142,049 → 426,148 → 213,074 → 106,537 → 319,612 → 159,806 → 79,903 → 239,710 → 119,855 → 359,566 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage14,204,900%
142,049% as a decimal1,420.49
142,049% of 100142,049
142,049% of 1,0001,420,490
As a fraction of 100142,049/100
Read another way
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Derived from 142,049
Also reads as
#142049 (colour)
- #142049
- Blue
- Dark
- Nearest: Dark slateblue
#142049 is a blue with RGB values 20, 32, 73 and HSL 226°, 57%, 18%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.
Colour values
#142049#142049
HEX#142049
RGBrgb(20, 32, 73)
RGB (0–1)0.0784, 0.1255, 0.2863
RGB percentages7.8%, 12.5%, 28.6%
HSLhsl(226.4, 57%, 18.2%)
HSV / HSBhsv(226.4, 72.6%, 28.6%)
CMYK72.6%, 56.2%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,318,985
CSS custom property--colour: #142049;
Brightness & contrast
Relative luminance0.01663WCAG 2.x, 0 is black and 1 is white
Perceived brightness36.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.76:1
Contrast with white15.76:1WCAG normal text: AAA
Contrast with black1.33:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#EBDFB6
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.76:1WCAG large text: AAA
Contrast with black, large text1.33:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#493D14
Analogous#143A49, #231449
Triadic#491420, #204914
Split complementary#492314, #3A4914
Tetradic#49143A, #493D14, #144923
Tints, shades & saturation
Channel breakdown
R20
G32
B73
Red20 (7.8%)
Green32 (12.5%)
Blue73 (28.6%)
Hue226.42°
Saturation (HSL)56.99%
Lightness18.24%
Dominant channelBlue
Hex per channelR 14 · G 20 · B 49
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