Number
500,000
- Positive
- Even
- Composite
- 6 digits
500,000 is an even 6-digit integer and a composite number. It has 42 divisors and a digital root of 5.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value500,000
Digit count6
Digit sum5
Digital root5repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^5 × 5^6
Distinct prime factors22, 5
Number of divisors42
Sum of divisors σ(n)1,230,453
Aliquot sum730,453sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)200,000integers 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, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1,000, 1,250, 2,000, 2,500, 3,125, 4,000, 5,000, 6,250, 10,000, 12,500, 15,625, 20,000, 25,000, 31,250, 50,000, 62,500, 100,000, 125,000, 250,000, 500,00042 in total
Arithmetic
Representations
Decimal500,000
Binary111101000010010000019 bits
Octal1720440
Hexadecimal7A120
Base 36APSW
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsfive hundred thousand
Ordinalfive hundred thousandth
Scientific notation5 × 10^5
Engineering notation500 × 10^3
Nearest landmarks
Powers & multiples
500,000 to the power 2250,000,000,000
500,000 to the power 3125,000,000,000,000,000
500,000 to the power 462,500,000,000,000,000,000,000
500,000 to the power 531,250,000,000,000,000,000,000,000,000
First ten multiples500,000, 1,000,000, 1,500,000, 2,000,000, 2,500,000, 3,000,000, 3,500,000, 4,000,000, 4,500,000, 5,000,000
Powers of twoBetween 2^18 (262,144) and 2^19 (524,288)
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 4
Divisible by 8Yes
Divisible by 9No, remainder 5
Divisible by 10Yes
Divisible by 11No, remainder 6
Divisible by 12No, remainder 8
Divisible by 100Yes
Collatz (3n + 1) trajectory
Steps to reach 1151the total stopping time
Highest value reached500,000
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps500,000 → 250,000 → 125,000 → 62,500 → 31,250 → 15,625 → 46,876 → 23,438 → 11,719 → 35,158 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage50,000,000%
500,000% as a decimal5,000
500,000% of 100500,000
500,000% of 1,0005,000,000
As a fraction of 100500,000/100
Read another way
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Derived from 500,000
Also reads as
#500000 (colour)
- #500000
- Red
- Dark
- Nearest: Maroon
#500000 is a red with RGB values 80, 0, 0 and HSL 0°, 100%, 16%. It is a dark colour, so white text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Maroon.
Colour values
#500000#500000
HEX#500000
RGBrgb(80, 0, 0)
RGB (0–1)0.3137, 0, 0
RGB percentages31.4%, 0%, 0%
HSLhsl(0, 100%, 15.7%)
HSV / HSBhsv(0, 100%, 31.4%)
CMYK0%, 100%, 100%, 68.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,242,880
CSS custom property--colour: #500000;
Brightness & contrast
Relative luminance0.01705WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.66:1
Contrast with white15.66:1WCAG normal text: AAA
Contrast with black1.34:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#AFFFFF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.66:1WCAG large text: AAA
Contrast with black, large text1.34:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#005050
Analogous#500028, #502800
Triadic#005000, #000050
Split complementary#005028, #002850
Tetradic#285000, #005050, #280050
Tints, shades & saturation
Channel breakdown
R80
G0
B0
Red80 (31.4%)
Green0 (0%)
Blue0 (0%)
Hue0°
Saturation (HSL)100%
Lightness15.69%
Dominant channelRed
Hex per channelR 50 · G 00 · B 00
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