Number
938
- Positive
- Even
- Composite
- 3 digits
938 is an even 3-digit integer and a composite number. It has 8 divisors and a digital root of 2.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value938
Digit count3
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 factorisation2 × 7 × 67
Distinct prime factors32, 7, 67
Number of divisors8
Sum of divisors σ(n)1,632
Aliquot sum694sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)396integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 2, 7, 14, 67, 134, 469, 9388 in total
Arithmetic
Representations
Decimal938
Binary111010101010 bits
Octal1652
Hexadecimal3AA
Base 36Q2
Roman numeralCMXXXVIII
In wordsnine hundred and thirty-eight
Ordinalnine hundred and thirty-eighth
Scientific notation9.38 × 10^2
Engineering notation938
Nearest landmarks
Powers & multiples
938 to the power 2879,844
938 to the power 3825,293,672
938 to the power 4774,125,464,336
938 to the power 5726,129,685,547,168
First ten multiples938, 1,876, 2,814, 3,752, 4,690, 5,628, 6,566, 7,504, 8,442, 9,380
Powers of twoBetween 2^9 (512) and 2^10 (1,024)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 2
Divisible by 4No, remainder 2
Divisible by 5No, remainder 3
Divisible by 6No, remainder 2
Divisible by 7Yes
Divisible by 8No, remainder 2
Divisible by 9No, remainder 2
Divisible by 10No, remainder 8
Divisible by 11No, remainder 3
Divisible by 12No, remainder 2
Divisible by 100No, remainder 38
Collatz (3n + 1) trajectory
Steps to reach 123the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps938 → 469 → 1,408 → 704 → 352 → 176 → 88 → 44 → 22 → 11 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage93,800%
938% as a decimal9.38
938% of 100938
938% of 1,0009,380
As a fraction of 100938/100
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Derived from 938
Other readings
Also reads as
#993388 (colour)
- #993388
- Magenta
- Dark
- Nearest: Purple
#993388 is a magenta with RGB values 153, 51, 136 and HSL 310°, 50%, 40%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Purple.
Colour values
#993388#993388
HEX#993388
HEX (short)#938
RGBrgb(153, 51, 136)
RGB (0–1)0.6, 0.2, 0.5333
RGB percentages60%, 20%, 53.3%
HSLhsl(310, 50%, 40%)
HSV / HSBhsv(310, 66.7%, 60%)
CMYK0%, 66.7%, 11.1%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,040,200
CSS custom property--colour: #993388;
Brightness & contrast
Relative luminance0.10918WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.6:1
Contrast with white6.6:1WCAG normal text: AA
Contrast with black3.18:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#66CC77
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.6:1WCAG large text: AAA
Contrast with black, large text3.18:1WCAG large text: AA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#339944
Analogous#773399, #993355
Triadic#889933, #338899
Split complementary#559933, #339977
Tetradic#997733, #339944, #335599
Tints, shades & saturation
Channel breakdown
R153
G51
B136
Red153 (60%)
Green51 (20%)
Blue136 (53.3%)
Hue310°
Saturation (HSL)50%
Lightness40%
Dominant channelRed
Hex per channelR 99 · G 33 · B 88
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Harmonies
Similar named colours
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