Number
550,000
- Positive
- Even
- Composite
- 6 digits
550,000 is an even 6-digit integer and a composite number. It has 60 divisors and a digital root of 1.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value550,000
Digit count6
Digit sum10
Digital root1repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^4 × 5^5 × 11
Distinct prime factors32, 5, 11
Number of divisors60
Sum of divisors σ(n)1,453,032
Aliquot sum903,032sum 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, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 176, 200, 220, 250, 275, 400, 440, 500, 550, 625, 880, 1,000, 1,100, 1,250, 1,375, 2,000, 2,200, 2,500, 2,750, 3,125, 4,400, 5,000, 5,500, 6,250, 6,875, 10,000, 11,000, 12,500, 13,750, 22,000, 25,000, 27,500, 34,375, 50,000, 55,000, 68,750, 110,000, 137,500, 275,000, 550,00060 in total
Arithmetic
Representations
Decimal550,000
Binary1000011001000111000020 bits
Octal2062160
Hexadecimal86470
Base 36BSDS
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsfive hundred and fifty thousand
Ordinalfive hundred and fifty thousandth
Scientific notation5.5 × 10^5
Engineering notation550 × 10^3
Nearest landmarks
Powers & multiples
550,000 to the power 2302,500,000,000
550,000 to the power 3166,375,000,000,000,000
550,000 to the power 491,506,250,000,000,000,000,000
550,000 to the power 550,328,437,500,000,000,000,000,000,000
First ten multiples550,000, 1,100,000, 1,650,000, 2,200,000, 2,750,000, 3,300,000, 3,850,000, 4,400,000, 4,950,000, 5,500,000
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 3
Divisible by 8Yes
Divisible by 9No, remainder 1
Divisible by 10Yes
Divisible by 11Yes
Divisible by 12No, remainder 4
Divisible by 100Yes
Collatz (3n + 1) trajectory
Steps to reach 1133the total stopping time
Highest value reached550,000
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps550,000 → 275,000 → 137,500 → 68,750 → 34,375 → 103,126 → 51,563 → 154,690 → 77,345 → 232,036 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage55,000,000%
550,000% as a decimal5,500
550,000% of 100550,000
550,000% of 1,0005,500,000
As a fraction of 100550,000/100
Read another way
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Derived from 550,000
Also reads as
#550000 (colour)
- #550000
- Red
- Dark
- Nearest: Maroon
#550000 is a red with RGB values 85, 0, 0 and HSL 0°, 100%, 17%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Maroon.
Colour values
#550000#550000
HEX#550000
HEX (short)#500
RGBrgb(85, 0, 0)
RGB (0–1)0.3333, 0, 0
RGB percentages33.3%, 0%, 0%
HSLhsl(0, 100%, 16.7%)
HSV / HSBhsv(0, 100%, 33.3%)
CMYK0%, 100%, 100%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,570,560
CSS custom property--colour: #550000;
Brightness & contrast
Relative luminance0.01931WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.15:1
Contrast with white15.15:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#AAFFFF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.15:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#005555
Analogous#55002A, #552A00
Triadic#005500, #000055
Split complementary#00552A, #002A55
Tetradic#2A5500, #005555, #2A0055
Tints, shades & saturation
Channel breakdown
R85
G0
B0
Red85 (33.3%)
Green0 (0%)
Blue0 (0%)
Hue0°
Saturation (HSL)100%
Lightness16.67%
Dominant channelRed
Hex per channelR 55 · G 00 · B 00
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