Number
387,000
- Positive
- Even
- Composite
- 6 digits
387,000 is an even 6-digit integer and a composite number. It has 96 divisors and a digital root of 9.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value387,000
Digit count6
Digit sum18
Digital root9repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^3 × 3^2 × 5^3 × 43
Distinct prime factors42, 3, 5, 43
Number of divisors96
Sum of divisors σ(n)1,338,480
Aliquot sum951,480sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)100,800integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 43, 45, 50, 60, 72, 75, 86, 90, 100, 120, 125, 129, 150, 172, 180, 200, 215, 225, 250, 258, 300, 344, 360, 375, 387, 430, 450, 500, 516, 600, 645, 750, 774, 860, 900, 1,000, 1,032, 1,075, 1,125, 1,290, 1,500, 1,548, 1,720, 1,800, 1,935, 2,150, 2,250, 2,580, 3,000, 3,096, 3,225, 3,870, 4,300, 4,500, 5,160, 5,375, 6,450, 7,740, 8,600, 9,000, 9,675, 10,750, 12,900, 15,480, 16,125, 19,350, 21,500, 25,800, 32,250, 38,700, 43,000, 48,375, 64,500, 77,400, 96,750, 129,000, 193,500, 387,00096 in total
Arithmetic
Representations
Decimal387,000
Binary101111001111011100019 bits
Octal1363670
Hexadecimal5E7B8
Base 368AM0
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsthree hundred and eighty-seven thousand
Ordinalthree hundred and eighty-seven thousandth
Scientific notation3.87 × 10^5
Engineering notation387 × 10^3
Nearest landmarks
Powers & multiples
387,000 to the power 2149,769,000,000
387,000 to the power 357,960,603,000,000,000
387,000 to the power 422,430,753,361,000,000,000,000
387,000 to the power 58,680,701,550,707,000,000,000,000,000
First ten multiples387,000, 774,000, 1,161,000, 1,548,000, 1,935,000, 2,322,000, 2,709,000, 3,096,000, 3,483,000, 3,870,000
Powers of twoBetween 2^18 (262,144) and 2^19 (524,288)
Divisibility tests
Divisible by 2Yes
Divisible by 3Yes
Divisible by 4Yes
Divisible by 5Yes
Divisible by 6Yes
Divisible by 7No, remainder 5
Divisible by 8Yes
Divisible by 9Yes
Divisible by 10Yes
Divisible by 11No, remainder 9
Divisible by 12Yes
Divisible by 100Yes
Collatz (3n + 1) trajectory
Steps to reach 199the total stopping time
Highest value reached387,000
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps387,000 → 193,500 → 96,750 → 48,375 → 145,126 → 72,563 → 217,690 → 108,845 → 326,536 → 163,268 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage38,700,000%
387,000% as a decimal3,870
387,000% of 100387,000
387,000% of 1,0003,870,000
As a fraction of 100387,000/100
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Derived from 387,000
Also reads as
#387000 (colour)
- #387000
- Green
- Dark
- Nearest: Dark green
#387000 is a green with RGB values 56, 112, 0 and HSL 90°, 100%, 22%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dark green.
Colour values
#387000#387000
HEX#387000
RGBrgb(56, 112, 0)
RGB (0–1)0.2196, 0.4392, 0
RGB percentages22%, 43.9%, 0%
HSLhsl(90, 100%, 22%)
HSV / HSBhsv(90, 100%, 43.9%)
CMYK50%, 0%, 100%, 56.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,698,688
CSS custom property--colour: #387000;
Brightness & contrast
Relative luminance0.12429WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.02:1
Contrast with white6.02:1WCAG normal text: AA
Contrast with black3.49:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#C78FFF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.02:1WCAG large text: AAA
Contrast with black, large text3.49:1WCAG large text: AA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#380070
Analogous#707000, #007000
Triadic#003870, #700038
Split complementary#000070, #700070
Tetradic#007070, #380070, #700000
Tints, shades & saturation
Channel breakdown
R56
G112
B0
Red56 (22%)
Green112 (43.9%)
Blue0 (0%)
Hue90°
Saturation (HSL)100%
Lightness21.96%
Dominant channelGreen
Hex per channelR 38 · G 70 · B 00
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Harmonies
Similar named colours
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