Recognised as Number
529
- Positive
- Odd
- Composite
- Perfect square
- 3 digits
529 is an odd 3-digit integer and a composite number. It has 3 divisors and a digital root of 7.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value529
Digit count3
Digit sum16
Digit product90
Multiplicative persistence2times the digit product can be taken before one digit is left
Digital root7repeated digit sum
PalindromicNoreads differently backwards
Perfect squareYes, 23²
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation23^2
Distinct prime factors123
Number of divisors3
Sum of divisors σ(n)553
Aliquot sum24sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)506integers below n that share no factor with it
Carmichael function λ(n)506the smallest exponent with aˣ ≡ 1 for every unit coprime to n
Möbius function μ(n)0zero, because a prime divides n twice
SquarefreeNohas a repeated prime factor
All divisors1, 23, 5293 in total
Arithmetic
Representations
Decimal529
Binary100001000110 bits
Octal1021
Hexadecimal211
Base 36EP
Roman numeralDXXIX
In wordsfive hundred and twenty-nine
Ordinalfive hundred and twenty-ninth
Scientific notation5.29 × 10^2
Engineering notation529
In other bases
Ternary201121base 3; the most digit-efficient integer base after e: 6 digits
Quinary4104base 5; one hand: 4 digits
Septenary1354base 7: 4 digits
Nonary647base 9; each digit is two ternary digits: 3 digits
Duodecimal381base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 3 digits
Vigesimal169base 20; hands and feet, and the Mayan and Yoruba systems: 3 digits
Sexagesimal8:49base 60; Babylonian, and still how an hour and a circle are divided: 2 digits
Balanced ternary1T1TTT1digits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary11000010001base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
0000001000010001
Bit length10 bitsto write the magnitude
Set bits3the population count, or Hamming weight
Zero bits7within that length
Bit parityodd3 set bits, so odd; not the same as the number itself being odd
Highest set bitbit 9worth 512
Lowest set bitbit 00 trailing zeros
Power of twoNo
Bytes202 11
Gray code1100011001n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
16-bit0000001000010001
32-bit00000000000000000000001000010001
64-bit0000000000000000000000000000000000000000000000000000001000010001
One's complement1111110111101110at 16 bits, every bit flipped
Bits reversed1000100001000000at 16 bits
Rotated left by 10000010000100010at 16 bits, wrapping
Shifted left by 110000100010= 1,058, no wrap
Shifted right by 1100001000= 264, discarding the low bit
These bits as a double2.61360727 × 10^-321≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Nearest landmarks
Powers & multiples
529 to the power 2279,841
529 to the power 3148,035,889
529 to the power 478,310,985,281
529 to the power 541,426,511,213,649
First ten multiples529, 1,058, 1,587, 2,116, 2,645, 3,174, 3,703, 4,232, 4,761, 5,290
Powers of twoBetween 2^9 (512) and 2^10 (1,024)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 1
Divisible by 4No, remainder 1
Divisible by 5No, remainder 4
Divisible by 6No, remainder 1
Divisible by 7No, remainder 4
Divisible by 8No, remainder 1
Divisible by 9No, remainder 7
Divisible by 10No, remainder 9
Divisible by 11No, remainder 1
Divisible by 12No, remainder 1
Divisible by 100No, remainder 29
Collatz (3n + 1) trajectory
Steps to reach 130the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps529 → 1,588 → 794 → 397 → 1,192 → 596 → 298 → 149 → 448 → 224 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage52,900%
529% as a decimal5.29
529% of 100529
529% of 1,0005,290
As a fraction of 100529/100
Read another way
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Derived from 529
Other readings
Also reads as
#552299 (colour)
- #552299
- Violet
- Dark
- Nearest: Indigo
#552299 is a violet with RGB values 85, 34, 153 and HSL 266°, 64%, 37%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Indigo.
Colour values
#552299#552299
HEX#552299
HEX (short)#529
RGBrgb(85, 34, 153)
RGB (0–1)0.3333, 0.1333, 0.6
RGB percentages33.3%, 13.3%, 60%
HSLhsl(265.7, 63.6%, 36.7%)
HSV / HSBhsv(265.7, 77.8%, 60%)
CMYK44.4%, 77.8%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,579,417
CSS custom property--colour: #552299;
Brightness & contrast
Relative luminance0.05375WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.12:1
Contrast with white10.12:1WCAG normal text: AAA
Contrast with black2.08:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#AADD66
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.12:1WCAG large text: AAA
Contrast with black, large text2.08:1WCAG large text: Fail
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#669922
Analogous#222A99, #912299
Triadic#995522, #229955
Split complementary#999122, #2A9922
Tetradic#99222A, #669922, #229991
Tints, shades & saturation
Channel breakdown
R85
G34
B153
Red85 (33.3%)
Green34 (13.3%)
Blue153 (60%)
Hue265.71°
Saturation (HSL)63.64%
Lightness36.67%
Dominant channelBlue
Hex per channelR 55 · G 22 · B 99
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