Number
120,100
- Positive
- Even
- Composite
- 6 digits
120,100 is an even 6-digit integer and a composite number. It has 18 divisors and a digital root of 4.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value120,100
Digit count6
Digit sum4
Digital root4repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberYesdivisible by its own digit sum
Factors & divisors
Prime factorisation2^2 × 5^2 × 1,201
Distinct prime factors32, 5, 1,201
Number of divisors18
Sum of divisors σ(n)260,834
Aliquot sum140,734sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)48,000integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 4, 5, 10, 20, 25, 50, 100, 1,201, 2,402, 4,804, 6,005, 12,010, 24,020, 30,025, 60,050, 120,10018 in total
Arithmetic
Representations
Decimal120,100
Binary1110101010010010017 bits
Octal352444
Hexadecimal1D524
Base 362KO4
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsone hundred and twenty thousand, one hundred
Ordinalone hundred and twenty thousand, one hundredth
Scientific notation1.201 × 10^5
Engineering notation120.1 × 10^3
Nearest landmarks
Powers & multiples
120,100 to the power 214,424,010,000
120,100 to the power 31,732,323,601,000,000
120,100 to the power 4208,052,064,480,100,000,000
120,100 to the power 524,987,052,944,060,010,000,000,000
First ten multiples120,100, 240,200, 360,300, 480,400, 600,500, 720,600, 840,700, 960,800, 1,080,900, 1,201,000
Powers of twoBetween 2^16 (65,536) and 2^17 (131,072)
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 1
Divisible by 8No, remainder 4
Divisible by 9No, remainder 4
Divisible by 10Yes
Divisible by 11No, remainder 2
Divisible by 12No, remainder 4
Divisible by 100Yes
Collatz (3n + 1) trajectory
Steps to reach 166the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps120,100 → 60,050 → 30,025 → 90,076 → 45,038 → 22,519 → 67,558 → 33,779 → 101,338 → 50,669 → …
Last steps… → 32 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage12,010,000%
120,100% as a decimal1,201
120,100% of 100120,100
120,100% of 1,0001,201,000
As a fraction of 100120,100/100
Read another way
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Derived from 120,100
Also reads as
#120100 (colour)
- #120100
- Red
- Dark
- Nearest: Black
#120100 is a red with RGB values 18, 1, 0 and HSL 3°, 100%, 4%. It is a dark colour, so white text on it reaches 20.4:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#120100#120100
HEX#120100
RGBrgb(18, 1, 0)
RGB (0–1)0.0706, 0.0039, 0
RGB percentages7.1%, 0.4%, 0%
HSLhsl(3.3, 100%, 3.5%)
HSV / HSBhsv(3.3, 100%, 7.1%)
CMYK0%, 94.4%, 100%, 92.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,179,904
CSS custom property--colour: #120100;
Brightness & contrast
Relative luminance0.0015WCAG 2.x, 0 is black and 1 is white
Perceived brightness9.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.39:1
Contrast with white20.39:1WCAG normal text: AAA
Contrast with black1.03:1WCAG normal text: Fail
Greyscale equivalent#050505
Inverted#EDFEFF
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.39:1WCAG large text: AAA
Contrast with black, large text1.03:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#001112
Analogous#120008, #120A00
Triadic#001201, #010012
Split complementary#00120A, #000812
Tetradic#081200, #001112, #0A0012
Tints, shades & saturation
Channel breakdown
R18
G1
B0
Red18 (7.1%)
Green1 (0.4%)
Blue0 (0%)
Hue3.33°
Saturation (HSL)100%
Lightness3.53%
Dominant channelRed
Hex per channelR 12 · G 01 · B 00
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