Number
468
- Positive
- Even
- Composite
- 3 digits
468 is an even 3-digit integer and a composite number. It has 18 divisors and a digital root of 9.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value468
Digit count3
Digit sum18
Digital root9repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^2 × 3^2 × 13
Distinct prime factors32, 3, 13
Number of divisors18
Sum of divisors σ(n)1,274
Aliquot sum806sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)144integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 46818 in total
Arithmetic
Representations
Decimal468
Binary1110101009 bits
Octal724
Hexadecimal1D4
Base 36D0
Roman numeralCDLXVIII
In wordsfour hundred and sixty-eight
Ordinalfour hundred and sixty-eighth
Scientific notation4.68 × 10^2
Engineering notation468
Nearest landmarks
Powers & multiples
468 to the power 2219,024
468 to the power 3102,503,232
468 to the power 447,971,512,576
468 to the power 522,450,667,885,568
First ten multiples468, 936, 1,404, 1,872, 2,340, 2,808, 3,276, 3,744, 4,212, 4,680
Powers of twoBetween 2^8 (256) and 2^9 (512)
Divisibility tests
Divisible by 2Yes
Divisible by 3Yes
Divisible by 4Yes
Divisible by 5No, remainder 3
Divisible by 6Yes
Divisible by 7No, remainder 6
Divisible by 8No, remainder 4
Divisible by 9Yes
Divisible by 10No, remainder 8
Divisible by 11No, remainder 6
Divisible by 12Yes
Divisible by 100No, remainder 68
Collatz (3n + 1) trajectory
Steps to reach 122the total stopping time
Highest value reached468
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps468 → 234 → 117 → 352 → 176 → 88 → 44 → 22 → 11 → 34 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage46,800%
468% as a decimal4.68
468% of 100468
468% of 1,0004,680
As a fraction of 100468/100
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Derived from 468
Other readings
Also reads as
#446688 (colour)
- #446688
- Blue
- Dark
- Nearest: Steel blue
#446688 is a blue with RGB values 68, 102, 136 and HSL 210°, 33%, 40%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.
Colour values
#446688#446688
HEX#446688
HEX (short)#468
RGBrgb(68, 102, 136)
RGB (0–1)0.2667, 0.4, 0.5333
RGB percentages26.7%, 40%, 53.3%
HSLhsl(210, 33.3%, 40%)
HSV / HSBhsv(210, 50%, 53.3%)
CMYK50%, 25%, 0%, 46.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,482,696
CSS custom property--colour: #446688;
Brightness & contrast
Relative luminance0.12509WCAG 2.x, 0 is black and 1 is white
Perceived brightness98 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6:1
Contrast with white6:1WCAG normal text: AA
Contrast with black3.5:1WCAG normal text: Fail
Greyscale equivalent#616161
Inverted#BB9977
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6:1WCAG large text: AAA
Contrast with black, large text3.5:1WCAG large text: AA
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#886644
Analogous#448888, #444488
Triadic#884466, #668844
Split complementary#884444, #888844
Tetradic#884488, #886644, #448844
Tints, shades & saturation
Channel breakdown
R68
G102
B136
Red68 (26.7%)
Green102 (40%)
Blue136 (53.3%)
Hue210°
Saturation (HSL)33.33%
Lightness40%
Dominant channelBlue
Hex per channelR 44 · G 66 · B 88
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Harmonies
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