Number
893
- Positive
- Odd
- Composite
- 3 digits
893 is an odd 3-digit integer and a composite number. It has 4 divisors and a digital root of 2.
The canonical address for this page is /893.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value893
Digit count3
Digit sum20
Digital root2repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation19 × 47
Distinct prime factors219, 47
Number of divisors4
Sum of divisors σ(n)960
Aliquot sum67sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)828integers below n that share no factor with it
SquarefreeYesno repeated prime factor
All divisors1, 19, 47, 8934 in total
Arithmetic
Representations
Decimal893
Binary110111110110 bits
Octal1575
Hexadecimal37D
Base 36OT
Roman numeralDCCCXCIII
In wordseight hundred and ninety-three
Ordinaleight hundred and ninety-third
Scientific notation8.93 × 10^2
Engineering notation893
Nearest landmarks
Powers & multiples
893 to the power 2797,449
893 to the power 3712,121,957
893 to the power 4635,924,907,601
893 to the power 5567,880,942,487,693
First ten multiples893, 1,786, 2,679, 3,572, 4,465, 5,358, 6,251, 7,144, 8,037, 8,930
Powers of twoBetween 2^9 (512) and 2^10 (1,024)
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 2
Divisible by 10No, remainder 3
Divisible by 11No, remainder 2
Divisible by 12No, remainder 5
Divisible by 100No, remainder 93
Collatz (3n + 1) trajectory
Steps to reach 172the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps893 → 2,680 → 1,340 → 670 → 335 → 1,006 → 503 → 1,510 → 755 → 2,266 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage89,300%
893% as a decimal8.93
893% of 100893
893% of 1,0008,930
As a fraction of 100893/100
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Derived from 893
Other readings
Also reads as
#000893 (colour)
- #000893
- Blue
- Dark
- Nearest: Dark blue
#000893 is a blue with RGB values 0, 8, 147 and HSL 237°, 100%, 29%. It is a dark colour, so white text on it reaches 14.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#000893#000893
HEX#000893
RGBrgb(0, 8, 147)
RGB (0–1)0, 0.0314, 0.5765
RGB percentages0%, 3.1%, 57.6%
HSLhsl(236.7, 100%, 28.8%)
HSV / HSBhsv(236.7, 100%, 57.6%)
CMYK100%, 94.6%, 0%, 42.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,195
CSS custom property--colour: #000893;
Brightness & contrast
Relative luminance0.0228WCAG 2.x, 0 is black and 1 is white
Perceived brightness50 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.42:1
Contrast with white14.42:1WCAG normal text: AAA
Contrast with black1.46:1WCAG normal text: Fail
Greyscale equivalent#101010
Inverted#FFF76C
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.42:1WCAG large text: AAA
Contrast with black, large text1.46:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#938B00
Analogous#005193, #420093
Triadic#930008, #089300
Split complementary#934200, #519300
Tetradic#930051, #938B00, #009341
Tints, shades & saturation
Channel breakdown
R0
G8
B147
Red0 (0%)
Green8 (3.1%)
Blue147 (57.6%)
Hue236.73°
Saturation (HSL)100%
Lightness28.82%
Dominant channelBlue
Hex per channelR 00 · G 08 · B 93
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