Number
121,013
- Positive
- Odd
- Prime
- 6 digits
121,013 is an odd 6-digit integer and a prime number. It has 2 divisors and a digital root of 8.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityPrime
Absolute value121,013
Digit count6
Digit sum8
Digital root8repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation121,013
Distinct prime factors1121,013
Number of divisors2
Sum of divisors σ(n)121,014
Aliquot sum1sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)121,012integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 121,0132 in total
Arithmetic
Representations
Decimal121,013
Binary1110110001011010117 bits
Octal354265
Hexadecimal1D8B5
Base 362LDH
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsone hundred and twenty-one thousand and thirteen
Ordinalone hundred and twenty-one thousand and thirteenth
Scientific notation1.21013 × 10^5
Engineering notation121.013 × 10^3
Nearest landmarks
Powers & multiples
121,013 to the power 214,644,146,169
121,013 to the power 31,772,132,060,349,197
121,013 to the power 4214,451,017,019,037,376,561
121,013 to the power 525,951,360,922,524,770,049,776,293
First ten multiples121,013, 242,026, 363,039, 484,052, 605,065, 726,078, 847,091, 968,104, 1,089,117, 1,210,130
Powers of twoBetween 2^16 (65,536) and 2^17 (131,072)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 2
Divisible by 4No, remainder 1
Divisible by 5No, remainder 3
Divisible by 6No, remainder 5
Divisible by 7No, remainder 4
Divisible by 8No, remainder 5
Divisible by 9No, remainder 8
Divisible by 10No, remainder 3
Divisible by 11No, remainder 2
Divisible by 12No, remainder 5
Divisible by 100No, remainder 13
Collatz (3n + 1) trajectory
Steps to reach 187the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps121,013 → 363,040 → 181,520 → 90,760 → 45,380 → 22,690 → 11,345 → 34,036 → 17,018 → 8,509 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage12,101,300%
121,013% as a decimal1,210.13
121,013% of 100121,013
121,013% of 1,0001,210,130
As a fraction of 100121,013/100
Read another way
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Derived from 121,013
Also reads as
#121013 (colour)
- #121013
- Violet
- Dark
- Nearest: Black
#121013 is a violet with RGB values 18, 16, 19 and HSL 280°, 9%, 7%. It is a dark colour, so white text on it reaches 18.9:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#121013#121013
HEX#121013
RGBrgb(18, 16, 19)
RGB (0–1)0.0706, 0.0627, 0.0745
RGB percentages7.1%, 6.3%, 7.5%
HSLhsl(280, 8.6%, 6.9%)
HSV / HSBhsv(280, 15.8%, 7.5%)
CMYK5.3%, 15.8%, 0%, 92.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,183,763
CSS custom property--colour: #121013;
Brightness & contrast
Relative luminance0.00546WCAG 2.x, 0 is black and 1 is white
Perceived brightness17 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.93:1
Contrast with white18.93:1WCAG normal text: AAA
Contrast with black1.11:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#EDEFEC
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.93:1WCAG large text: AAA
Contrast with black, large text1.11:1WCAG large text: Fail
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#111310
Analogous#111013, #131012
Triadic#131210, #101312
Split complementary#121310, #101310
Tetradic#131010, #111310, #101313
Tints, shades & saturation
Channel breakdown
R18
G16
B19
Red18 (7.1%)
Green16 (6.3%)
Blue19 (7.5%)
Hue280°
Saturation (HSL)8.57%
Lightness6.86%
Dominant channelBlue
Hex per channelR 12 · G 10 · B 13
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