Number
808,000
- Positive
- Even
- Composite
- 6 digits
808,000 is an even 6-digit integer and a composite number. It has 56 divisors and a digital root of 7.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value808,000
Digit count6
Digit sum16
Digital root7repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^6 × 5^3 × 101
Distinct prime factors32, 5, 101
Number of divisors56
Sum of divisors σ(n)2,020,824
Aliquot sum1,212,824sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)320,000integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 125, 160, 200, 202, 250, 320, 400, 404, 500, 505, 800, 808, 1,000, 1,010, 1,600, 1,616, 2,000, 2,020, 2,525, 3,232, 4,000, 4,040, 5,050, 6,464, 8,000, 8,080, 10,100, 12,625, 16,160, 20,200, 25,250, 32,320, 40,400, 50,500, 80,800, 101,000, 161,600, 202,000, 404,000, 808,00056 in total
Arithmetic
Representations
Decimal808,000
Binary1100010101000100000020 bits
Octal3052100
HexadecimalC5440
Base 36HBGG
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordseight hundred and eight thousand
Ordinaleight hundred and eight thousandth
Scientific notation8.08 × 10^5
Engineering notation808 × 10^3
Nearest landmarks
Powers & multiples
808,000 to the power 2652,864,000,000
808,000 to the power 3527,514,112,000,000,000
808,000 to the power 4426,231,402,496,000,000,000,000
808,000 to the power 5344,394,973,216,768,000,000,000,000,000
First ten multiples808,000, 1,616,000, 2,424,000, 3,232,000, 4,040,000, 4,848,000, 5,656,000, 6,464,000, 7,272,000, 8,080,000
Powers of twoBetween 2^19 (524,288) and 2^20 (1,048,576)
Divisibility tests
Divisible by 2Yes
Divisible by 3No, remainder 1
Divisible by 4Yes
Divisible by 5Yes
Divisible by 6No, remainder 4
Divisible by 7No, remainder 4
Divisible by 8Yes
Divisible by 9No, remainder 7
Divisible by 10Yes
Divisible by 11No, remainder 6
Divisible by 12No, remainder 4
Divisible by 100Yes
Collatz (3n + 1) trajectory
Steps to reach 1100the total stopping time
Highest value reached808,000
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps808,000 → 404,000 → 202,000 → 101,000 → 50,500 → 25,250 → 12,625 → 37,876 → 18,938 → 9,469 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage80,800,000%
808,000% as a decimal8,080
808,000% of 100808,000
808,000% of 1,0008,080,000
As a fraction of 100808,000/100
Read another way
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Derived from 808,000
Also reads as
#808000 (colour)
- #808000
- Yellow
- Dark
- Named: Olive
#808000 is the CSS colour yellow with RGB values 128, 128, 0 and HSL 60°, 100%, 25%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Olive.
Colour values
#808000#808000
HEX#808000
RGBrgb(128, 128, 0)
RGB (0–1)0.502, 0.502, 0
RGB percentages50.2%, 50.2%, 0%
HSLhsl(60, 100%, 25.1%)
HSV / HSBhsv(60, 100%, 50.2%)
CMYK0%, 0%, 100%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,421,376
CSS custom property--colour: #808000;
Brightness & contrast
Relative luminance0.20028WCAG 2.x, 0 is black and 1 is white
Perceived brightness120.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.01:1
Contrast with white4.2:1WCAG normal text: Fail
Contrast with black5.01:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#7F7FFF
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.2:1WCAG large text: AA
Contrast with black, large text5.01:1WCAG large text: AAA
Named colours
Colour harmonies
Complementary#000080
Analogous#804000, #408000
Triadic#008080, #800080
Split complementary#004080, #400080
Tetradic#008040, #000080, #800040
Tints, shades & saturation
Channel breakdown
R128
G128
B0
Red128 (50.2%)
Green128 (50.2%)
Blue0 (0%)
Hue60°
Saturation (HSL)100%
Lightness25.1%
Dominant channelRed and Green
Hex per channelR 80 · G 80 · B 00
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Harmonies
Similar named colours
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