Number
111,112
- Positive
- Even
- Composite
- 6 digits
111,112 is an even 6-digit integer and a composite number. It has 32 divisors and a digital root of 7.
Number properties
ParityEvendivisible by 2
SignPositive
PrimalityComposite
Absolute value111,112
Digit count6
Digit sum7
Digital root7repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation2^3 × 17 × 19 × 43
Distinct prime factors42, 17, 19, 43
Number of divisors32
Sum of divisors σ(n)237,600
Aliquot sum126,488sum of the proper divisors
ClassificationAbundantthe aliquot sum exceeds the number
Euler's totient φ(n)48,384integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 2, 4, 8, 17, 19, 34, 38, 43, 68, 76, 86, 136, 152, 172, 323, 344, 646, 731, 817, 1,292, 1,462, 1,634, 2,584, 2,924, 3,268, 5,848, 6,536, 13,889, 27,778, 55,556, 111,11232 in total
Arithmetic
Representations
Decimal111,112
Binary1101100100000100017 bits
Octal331010
Hexadecimal1B208
Base 362DQG
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsone hundred and eleven thousand, one hundred and twelve
Ordinalone hundred and eleven thousand, one hundred and twelfth
Scientific notation1.11112 × 10^5
Engineering notation111.112 × 10^3
Nearest landmarks
Powers & multiples
111,112 to the power 212,345,876,544
111,112 to the power 31,371,775,034,556,928
111,112 to the power 4152,420,667,639,689,383,936
111,112 to the power 516,935,765,222,781,166,827,896,832
First ten multiples111,112, 222,224, 333,336, 444,448, 555,560, 666,672, 777,784, 888,896, 1,000,008, 1,111,120
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 5No, remainder 2
Divisible by 6No, remainder 4
Divisible by 7No, remainder 1
Divisible by 8Yes
Divisible by 9No, remainder 7
Divisible by 10No, remainder 2
Divisible by 11No, remainder 1
Divisible by 12No, remainder 4
Divisible by 100No, remainder 12
Collatz (3n + 1) trajectory
Steps to reach 148the total stopping time
Highest value reached111,112
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps111,112 → 55,556 → 27,778 → 13,889 → 41,668 → 20,834 → 10,417 → 31,252 → 15,626 → 7,813 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage11,111,200%
111,112% as a decimal1,111.12
111,112% of 100111,112
111,112% of 1,0001,111,120
As a fraction of 100111,112/100
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Derived from 111,112
Also reads as
#111112 (colour)
- #111112
- Near-black
- Dark
- Nearest: Black
#111112 is a near-black with RGB values 17, 17, 18 and HSL 240°, 3%, 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
#111112#111112
HEX#111112
RGBrgb(17, 17, 18)
RGB (0–1)0.0667, 0.0667, 0.0706
RGB percentages6.7%, 6.7%, 7.1%
HSLhsl(240, 2.9%, 6.9%)
HSV / HSBhsv(240, 5.6%, 7.1%)
CMYK5.6%, 5.6%, 0%, 92.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,118,482
CSS custom property--colour: #111112;
Brightness & contrast
Relative luminance0.00564WCAG 2.x, 0 is black and 1 is white
Perceived brightness17.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.87:1
Contrast with white18.87:1WCAG normal text: AAA
Contrast with black1.11:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#EEEEED
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.87:1WCAG large text: AAA
Contrast with black, large text1.11:1WCAG large text: Fail
Named colours
Hue familynear-black
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#121211
Analogous#111212, #121112
Triadic#121111, #111211
Split complementary#121211, #121211
Tetradic#121112, #121211, #111212
Tints, shades & saturation
Channel breakdown
R17
G17
B18
Red17 (6.7%)
Green17 (6.7%)
Blue18 (7.1%)
Hue240°
Saturation (HSL)2.86%
Lightness6.86%
Dominant channelBlue
Hex per channelR 11 · G 11 · B 12
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