Number
60
- Positive
- Even
- Composite
- 2 digits
60 is an even 2-digit integer and a composite number. It has 12 divisors and a digital root of 6.
The canonical address for this page is /60.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value60
Digit count2
Digit sum6
Digital root6repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^2 × 3 × 5
Distinct prime factors32, 3, 5
Number of divisors12
Sum of divisors σ(n)168
Aliquot sum108sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)16integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 6012 in total
Arithmetic
Representations
Decimal60
Binary1111006 bits
Octal74
Hexadecimal3C
Base 361O
Roman numeralLX
In wordssixty
Ordinalsixtieth
Scientific notation6 × 10^1
Engineering notation60
Nearest landmarks
Powers & multiples
60 to the power 23,600
60 to the power 3216,000
60 to the power 412,960,000
60 to the power 5777,600,000
First ten multiples60, 120, 180, 240, 300, 360, 420, 480, 540, 600
Powers of twoBetween 2^5 (32) and 2^6 (64)
Divisibility tests
Divisible by 2Yes
Divisible by 3Yes
Divisible by 4Yes
Divisible by 5Yes
Divisible by 6Yes
Divisible by 7No, remainder 4
Divisible by 8No, remainder 4
Divisible by 9No, remainder 6
Divisible by 10Yes
Divisible by 11No, remainder 5
Divisible by 12Yes
Divisible by 100No, remainder 60
Collatz (3n + 1) trajectory
Steps to reach 119the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps60 → 30 → 15 → 46 → 23 → 70 → 35 → 106 → 53 → 160 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage6,000%
60% as a decimal0.6
60% of 10060
60% of 1,000600
As a fraction of 10060/100
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Derived from 60
Other readings
Also reads as
#000060 (colour)
- #000060
- Blue
- Dark
- Nearest: Midnight blue
#000060 is a blue with RGB values 0, 0, 96 and HSL 240°, 100%, 19%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.
Colour values
#000060#000060
HEX#000060
RGBrgb(0, 0, 96)
RGB (0–1)0, 0, 0.3765
RGB percentages0%, 0%, 37.6%
HSLhsl(240, 100%, 18.8%)
HSV / HSBhsv(240, 100%, 37.6%)
CMYK100%, 100%, 0%, 62.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer96
CSS custom property--colour: #000060;
Brightness & contrast
Relative luminance0.00845WCAG 2.x, 0 is black and 1 is white
Perceived brightness32.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.97:1
Contrast with white17.97:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#070707
Inverted#FFFF9F
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text17.97:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#606000
Analogous#003060, #300060
Triadic#600000, #006000
Split complementary#603000, #306000
Tetradic#600030, #606000, #006030
Tints, shades & saturation
Channel breakdown
R0
G0
B96
Red0 (0%)
Green0 (0%)
Blue96 (37.6%)
Hue240°
Saturation (HSL)100%
Lightness18.82%
Dominant channelBlue
Hex per channelR 00 · G 00 · B 60
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