Recognised as Number
773
- Positive
- Odd
- Prime
- 3 digits
773 is an odd 3-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 value773
Digit count3
Digit sum17
Digit product147
Multiplicative persistence4times the digit product can be taken before one digit is left
Digital root8repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation773
Distinct prime factors1773
Number of divisors2
Sum of divisors σ(n)774
Aliquot sum1sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)772integers below n that share no factor with it
Carmichael function λ(n)772the smallest exponent with aˣ ≡ 1 for every unit coprime to n
Möbius function μ(n)−11 distinct prime factor, an odd number of them
SquarefreeYesno repeated prime factor
All divisors1, 7732 in total
Arithmetic
Representations
Decimal773
Binary110000010110 bits
Octal1405
Hexadecimal305
Base 36LH
Roman numeralDCCLXXIII
In wordsseven hundred and seventy-three
Ordinalseven hundred and seventy-third
Scientific notation7.73 × 10^2
Engineering notation773
In other bases
Ternary1001122base 3; the most digit-efficient integer base after e — 7 digits
Quinary11043base 5; one hand — 5 digits
Septenary2153base 7 — 4 digits
Nonary1048base 9; each digit is two ternary digits — 4 digits
Duodecimal545base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves — 3 digits
Vigesimal1idbase 20; hands and feet, and the Mayan and Yoruba systems — 3 digits
Sexagesimal12:53base 60; Babylonian, and still how an hour and a circle are divided — 2 digits
Balanced ternary101TT0Tdigits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary11100000101base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
0000001100000101
Bit length10 bitsto write the magnitude
Set bits4the population count, or Hamming weight
Zero bits6within that length
Bit parityeven4 set bits, so even; not the same as the number itself being odd
Highest set bitbit 9worth 512
Lowest set bitbit 00 trailing zeros
Power of twoNo
Bytes203 05
Gray code1010000111n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
16-bit0000001100000101
32-bit00000000000000000000001100000101
64-bit0000000000000000000000000000000000000000000000000000001100000101
One's complement1111110011111010at 16 bits, every bit flipped
Bits reversed1010000011000000at 16 bits
Rotated left by 10000011000001010at 16 bits, wrapping
Shifted left by 111000001010= 1,546, no wrap
Shifted right by 1110000010= 386, discarding the low bit
These bits as a double3.81912744 × 10^-321≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Nearest landmarks
Powers & multiples
773 to the power 2597,529
773 to the power 3461,889,917
773 to the power 4357,040,905,841
773 to the power 5275,992,620,215,093
First ten multiples773, 1,546, 2,319, 3,092, 3,865, 4,638, 5,411, 6,184, 6,957, 7,730
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 3
Divisible by 8No, remainder 5
Divisible by 9No, remainder 8
Divisible by 10No, remainder 3
Divisible by 11No, remainder 3
Divisible by 12No, remainder 5
Divisible by 100No, remainder 73
Collatz (3n + 1) trajectory
Steps to reach 1121the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps773 → 2,320 → 1,160 → 580 → 290 → 145 → 436 → 218 → 109 → 328 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage77,300%
773% as a decimal7.73
773% of 100773
773% of 1,0007,730
As a fraction of 100773/100
Read another way
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Derived from 773
Other readings
Also reads as
#777733 (colour)
- #777733
- Yellow
- Dark
- Nearest: Dark olivegreen
#777733 is a yellow with RGB values 119, 119, 51 and HSL 60°, 40%, 33%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.
Colour values
#777733#777733
HEX#777733
HEX (short)#773
RGBrgb(119, 119, 51)
RGB (0–1)0.4667, 0.4667, 0.2
RGB percentages46.7%, 46.7%, 20%
HSLhsl(60, 40%, 33.3%)
HSV / HSBhsv(60, 57.1%, 46.7%)
CMYK0%, 0%, 57.1%, 53.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,829,299
CSS custom property--colour: #777733;
Brightness & contrast
Relative luminance0.17355WCAG 2.x, 0 is black and 1 is white
Perceived brightness113.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.7:1
Contrast with white4.7:1WCAG normal text: AA
Contrast with black4.47:1WCAG normal text: Fail
Greyscale equivalent#727272
Inverted#8888CC
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.7:1WCAG large text: AAA
Contrast with black, large text4.47:1WCAG large text: AA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#333377
Analogous#775533, #557733
Triadic#337777, #773377
Split complementary#335577, #553377
Tetradic#337755, #333377, #773355
Tints, shades & saturation
Channel breakdown
R119
G119
B51
Red119 (46.7%)
Green119 (46.7%)
Blue51 (20%)
Hue60°
Saturation (HSL)40%
Lightness33.33%
Dominant channelRed and Green
Hex per channelR 77 · G 77 · B 33
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Harmonies
Similar named colours
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