Recognised as Number
4,729
- Positive
- Odd
- Prime
- 4 digits
4,729 is an odd 4-digit integer and a prime number. It has 2 divisors and a digital root of 4.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityPrime
Absolute value4,729
Digit count4
Digit sum22
Digit product504
Multiplicative persistence2times the digit product can be taken before one digit is left
Digital root4repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation4,729
Distinct prime factors14,729
Number of divisors2
Sum of divisors σ(n)4,730
Aliquot sum1sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)4,728integers below n that share no factor with it
Carmichael function λ(n)4,728the 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, 4,7292 in total
Arithmetic
Previous number4,728
Next number4,730
Double9,458
Half2,364.5
Square22,363,441
Cube105,756,712,489
Square root68.767724988≈irrational, shown to 9 decimal places
Cube root16.785067987≈
Negation-4,729
Reciprocal0.0002114612≈
Representations
Decimal4,729
Binary100100111100113 bits
Octal11171
Hexadecimal1279
Base 363ND
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsfour thousand, seven hundred and twenty-nine
Ordinalfour thousand, seven hundred and twenty-ninth
Scientific notation4.729 × 10^3
Engineering notation4.729 × 10^3
In other bases
Ternary20111011base 3; the most digit-efficient integer base after e: 8 digits
Quinary122404base 5; one hand: 6 digits
Septenary16534base 7: 5 digits
Nonary6434base 9; each digit is two ternary digits: 4 digits
Duodecimal28a1base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 4 digits
Vigesimalbg9base 20; hands and feet, and the Mayan and Yoruba systems: 3 digits
Sexagesimal1:18:49base 60; Babylonian, and still how an hour and a circle are divided: 3 digits
Balanced ternary1T0111011digits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary1011110001001base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
0001001001111001
Bit length13 bitsto write the magnitude
Set bits7the population count, or Hamming weight
Zero bits6within that length
Bit parityodd7 set bits, so odd; not the same as the number itself being odd
Highest set bitbit 12worth 4,096
Lowest set bitbit 00 trailing zeros
Power of twoNo
Bytes212 79
Gray code1101101000101n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
16-bit0001001001111001
32-bit00000000000000000001001001111001
64-bit0000000000000000000000000000000000000000000000000001001001111001
One's complement1110110110000110at 16 bits, every bit flipped
Bits reversed1001111001001000at 16 bits
Rotated left by 10010010011110010at 16 bits, wrapping
Shifted left by 110010011110010= 9,458, no wrap
Shifted right by 1100100111100= 2,364, discarding the low bit
These bits as a double2.33643644 × 10^-320≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Nearest landmarks
Powers & multiples
4,729 to the power 222,363,441
4,729 to the power 3105,756,712,489
4,729 to the power 4500,123,493,360,481
4,729 to the power 52,365,084,000,101,714,649
First ten multiples4,729, 9,458, 14,187, 18,916, 23,645, 28,374, 33,103, 37,832, 42,561, 47,290
Powers of twoBetween 2^12 (4,096) and 2^13 (8,192)
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 4
Divisible by 10No, remainder 9
Divisible by 11No, remainder 10
Divisible by 12No, remainder 1
Divisible by 100No, remainder 29
Collatz (3n + 1) trajectory
Steps to reach 159the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps4,729 → 14,188 → 7,094 → 3,547 → 10,642 → 5,321 → 15,964 → 7,982 → 3,991 → 11,974 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage472,900%
4,729% as a decimal47.29
4,729% of 1004,729
4,729% of 1,00047,290
As a fraction of 1004,729/100
Read another way
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Derived from 4,729
Also reads as
4729 (year)
- Common year
- 365 days
- 48th century
- Rooster
4729 will be a common year of 365 days. It begins on a Tuesday and ends on a Tuesday. Easter Sunday falls on 21 April.
Structure of the year
Patterns forced by the calendar
Weekday counts52 of each, plus an extra Tuesday365 days is 52 weeks and 1 day, and the remainder starts on the weekday 1 January falls on
Sundays52
Mondays52
Tuesdays53one of the extras
Wednesdays52
Thursdays52
Fridays52
Saturdays52
Friday the 13th2 of them13 September, 13 December
ISO weeks52an ordinary 52-week year
Same calendar as4718the most recent year whose calendar is identical, so a printed one could be reused
Calendar repeats in4735, 4746, 47576 years later, then again after that; the gap is 6, 11 or 28 years, broken by centuries that skip a leap year
Months of 4729
January31 days, starts Tuesday
February28 days, starts Friday
August31 days, starts Thursday
September30 days, starts Sunday
October31 days, starts Tuesday
November30 days, starts Friday
December31 days, starts Sunday
Time references
These values depend on today’s date and change daily.
Unix timestamp at the start87,065,625,600
Unix timestamp at the end87,097,161,599
Years from now2,703 years from now
Days from today986,990 days to 1 January
The number 4729
As a number4,729
In wordsfour thousand, seven hundred and twenty-nine
Roman numeralsNot defined above 3,999
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Also reads as
#447722 (colour)
- #447722
- Green
- Dark
- Nearest: Dark green
#447722 is a green with RGB values 68, 119, 34 and HSL 96°, 56%, 30%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Dark green.
Colour values
#447722#447722
HEX#447722
HEX (short)#472
RGBrgb(68, 119, 34)
RGB (0–1)0.2667, 0.4667, 0.1333
RGB percentages26.7%, 46.7%, 13.3%
HSLhsl(96, 55.6%, 30%)
HSV / HSBhsv(96, 71.4%, 46.7%)
CMYK42.9%, 0%, 71.4%, 53.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,486,946
CSS custom property--colour: #447722;
Brightness & contrast
Relative luminance0.14538WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.37:1
Contrast with white5.37:1WCAG normal text: AA
Contrast with black3.91:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#BB88DD
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.37:1WCAG large text: AAA
Contrast with black, large text3.91:1WCAG large text: AA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#552277
Analogous#6F7722, #22772B
Triadic#224477, #772244
Split complementary#2A2277, #77226F
Tetradic#226F77, #552277, #772A22
Tints, shades & saturation
Channel breakdown
R68
G119
B34
Red68 (26.7%)
Green119 (46.7%)
Blue34 (13.3%)
Hue96°
Saturation (HSL)55.56%
Lightness30%
Dominant channelGreen
Hex per channelR 44 · G 77 · B 22
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Harmonies
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