Number
260
- Positive
- Even
- Composite
- 3 digits
260 is an even 3-digit integer and a composite number. It has 12 divisors and a digital root of 8.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value260
Digit count3
Digit sum8
Digital root8repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation2^2 × 5 × 13
Distinct prime factors32, 5, 13
Number of divisors12
Sum of divisors σ(n)588
Aliquot sum328sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)96integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 26012 in total
Arithmetic
Representations
Decimal260
Binary1000001009 bits
Octal404
Hexadecimal104
Base 3678
Roman numeralCCLX
In wordstwo hundred and sixty
Ordinaltwo hundred and sixtieth
Scientific notation2.6 × 10^2
Engineering notation260
Nearest landmarks
Powers & multiples
260 to the power 267,600
260 to the power 317,576,000
260 to the power 44,569,760,000
260 to the power 51,188,137,600,000
First ten multiples260, 520, 780, 1,040, 1,300, 1,560, 1,820, 2,080, 2,340, 2,600
Powers of twoBetween 2^8 (256) and 2^9 (512)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 2
Divisible by 4Yes
Divisible by 5Yes
Divisible by 6No, remainder 2
Divisible by 7No, remainder 1
Divisible by 8No, remainder 4
Divisible by 9No, remainder 8
Divisible by 10Yes
Divisible by 11No, remainder 7
Divisible by 12No, remainder 8
Divisible by 100No, remainder 60
Collatz (3n + 1) trajectory
Steps to reach 129the total stopping time
Highest value reached260
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps260 → 130 → 65 → 196 → 98 → 49 → 148 → 74 → 37 → 112 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage26,000%
260% as a decimal2.6
260% of 100260
260% of 1,0002,600
As a fraction of 100260/100
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Derived from 260
Other readings
Also reads as
#226600 (colour)
- #226600
- Green
- Dark
- Nearest: Dark green
#226600 is a green with RGB values 34, 102, 0 and HSL 100°, 100%, 20%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Dark green.
Colour values
#226600#226600
HEX#226600
HEX (short)#260
RGBrgb(34, 102, 0)
RGB (0–1)0.1333, 0.4, 0
RGB percentages13.3%, 40%, 0%
HSLhsl(100, 100%, 20%)
HSV / HSBhsv(100, 100%, 40%)
CMYK66.7%, 0%, 100%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,254,336
CSS custom property--colour: #226600;
Brightness & contrast
Relative luminance0.09843WCAG 2.x, 0 is black and 1 is white
Perceived brightness80.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.07:1
Contrast with white7.07:1WCAG normal text: AAA
Contrast with black2.97:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#DD99FF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.07:1WCAG large text: AAA
Contrast with black, large text2.97:1WCAG large text: Fail
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#440066
Analogous#556600, #006611
Triadic#002266, #660022
Split complementary#110066, #660055
Tetradic#005566, #440066, #661100
Tints, shades & saturation
Channel breakdown
R34
G102
B0
Red34 (13.3%)
Green102 (40%)
Blue0 (0%)
Hue100°
Saturation (HSL)100%
Lightness20%
Dominant channelGreen
Hex per channelR 22 · G 66 · B 00
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Harmonies
Similar named colours
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