Number
142
- Positive
- Even
- Composite
- 3 digits
142 is an even 3-digit integer and a composite number. It has 4 divisors and a digital root of 7.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value142
Digit count3
Digit sum7
Digital root7repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation2 × 71
Distinct prime factors22, 71
Number of divisors4
Sum of divisors σ(n)216
Aliquot sum74sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)70integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 2, 71, 1424 in total
Arithmetic
Representations
Decimal142
Binary100011108 bits
Octal216
Hexadecimal8E
Base 363Y
Roman numeralCXLII
In wordsone hundred and forty-two
Ordinalone hundred and forty-second
Scientific notation1.42 × 10^2
Engineering notation142
Nearest landmarks
Powers & multiples
142 to the power 220,164
142 to the power 32,863,288
142 to the power 4406,586,896
142 to the power 557,735,339,232
First ten multiples142, 284, 426, 568, 710, 852, 994, 1,136, 1,278, 1,420
Powers of twoBetween 2^7 (128) and 2^8 (256)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 1
Divisible by 4No, remainder 2
Divisible by 5No, remainder 2
Divisible by 6No, remainder 4
Divisible by 7No, remainder 2
Divisible by 8No, remainder 6
Divisible by 9No, remainder 7
Divisible by 10No, remainder 2
Divisible by 11No, remainder 10
Divisible by 12No, remainder 10
Divisible by 100No, remainder 42
Collatz (3n + 1) trajectory
Steps to reach 1103the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps142 → 71 → 214 → 107 → 322 → 161 → 484 → 242 → 121 → 364 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage14,200%
142% as a decimal1.42
142% of 100142
142% of 1,0001,420
As a fraction of 100142/100
Read another way
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Derived from 142
Other readings
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.
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
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
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#441133
Analogous#194411, #11443C
Triadic#221144, #442211
Split complementary#3B1144, #44111A
Tetradic#111944, #441133, #443B11
Tints, shades & saturation
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
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Harmonies
Similar named colours
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