Recognised as Number
749,249
- Positive
- Odd
- Prime
- 6 digits
749,249 is an odd 6-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 value749,249
Digit count6
Digit sum35
Digit product18,144
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 factorisation749,249
Distinct prime factors1749,249
Number of divisors2
Sum of divisors σ(n)749,250
Aliquot sum1sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)749,248integers below n that share no factor with it
Carmichael function λ(n)749,248the 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, 749,2492 in total
Arithmetic
Representations
Decimal749,249
Binary1011011011101100000120 bits
Octal2667301
HexadecimalB6EC1
Base 36G24H
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordsseven hundred and forty-nine thousand, two hundred and forty-nine
Ordinalseven hundred and forty-nine thousand, two hundred and forty-ninth
Scientific notation7.49249 × 10^5
Engineering notation749.249 × 10^3
In other bases
Ternary1102001202222base 3; the most digit-efficient integer base after e: 13 digits
Quinary142433444base 5; one hand: 9 digits
Septenary6240254base 7: 7 digits
Nonary1361688base 9; each digit is two ternary digits: 7 digits
Duodecimal301715base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 6 digits
Vigesimal4dd29base 20; hands and feet, and the Mayan and Yoruba systems: 5 digits
Sexagesimal3:28:7:29base 60; Babylonian, and still how an hour and a circle are divided: 4 digits
Balanced ternary111T01TT1000Tdigits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary111001011001111000001base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
00000000000010110110111011000001
Bit length20 bitsto write the magnitude
Set bits11the population count, or Hamming weight
Zero bits9within that length
Bit parityodd11 set bits, so odd; not the same as the number itself being odd
Highest set bitbit 19worth 524,288
Lowest set bitbit 00 trailing zeros
Power of twoNo
Bytes30b 6e c1
Gray code11101101100110100001n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
32-bit00000000000010110110111011000001
64-bit0000000000000000000000000000000000000000000010110110111011000001
One's complement11111111111101001001000100111110at 32 bits, every bit flipped
Bits reversed10000011011101101101000000000000at 32 bits
Rotated left by 100000000000101101101110110000010at 32 bits, wrapping
Shifted left by 1101101101110110000010= 1,498,498, no wrap
Shifted right by 11011011011101100000= 374,624, discarding the low bit
These bits as a double3.70178191 × 10^-318≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Nearest landmarks
Powers & multiples
749,249 to the power 2561,374,064,001
749,249 to the power 3420,608,956,078,685,249
749,249 to the power 4315,140,839,732,998,844,128,001
749,249 to the power 5236,118,959,029,109,650,964,060,621,249
First ten multiples749,249, 1,498,498, 2,247,747, 2,996,996, 3,746,245, 4,495,494, 5,244,743, 5,993,992, 6,743,241, 7,492,490
Powers of twoBetween 2^19 (524,288) and 2^20 (1,048,576)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 2
Divisible by 4No, remainder 1
Divisible by 5No, remainder 4
Divisible by 6No, remainder 5
Divisible by 7No, remainder 4
Divisible by 8No, remainder 1
Divisible by 9No, remainder 8
Divisible by 10No, remainder 9
Divisible by 11No, remainder 6
Divisible by 12No, remainder 5
Divisible by 100No, remainder 49
Collatz (3n + 1) trajectory
Steps to reach 1136the total stopping time
Highest value reached2,247,7483× the starting value
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps749,249 → 2,247,748 → 1,123,874 → 561,937 → 1,685,812 → 842,906 → 421,453 → 1,264,360 → 632,180 → 316,090 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage74,924,900%
749,249% as a decimal7,492.49
749,249% of 100749,249
749,249% of 1,0007,492,490
As a fraction of 100749,249/100
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Derived from 749,249
Also reads as
#749249 (colour)
- #749249
- Green
- Dark
- Nearest: Olivedrab
#749249 is a green with RGB values 116, 146, 73 and HSL 85°, 33%, 43%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Olivedrab.
Colour values
#749249#749249
HEX#749249
RGBrgb(116, 146, 73)
RGB (0–1)0.4549, 0.5725, 0.2863
RGB percentages45.5%, 57.3%, 28.6%
HSLhsl(84.7, 33.3%, 42.9%)
HSV / HSBhsv(84.7, 50%, 57.3%)
CMYK20.5%, 0%, 50%, 42.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,639,625
CSS custom property--colour: #749249;
Brightness & contrast
Relative luminance0.24752WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.95:1
Contrast with white3.53:1WCAG normal text: Fail
Contrast with black5.95:1WCAG normal text: AA
Greyscale equivalent#868686
Inverted#8B6DB6
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.53:1WCAG large text: AA
Contrast with black, large text5.95:1WCAG large text: AAA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#674992
Analogous#928B49, #509249
Triadic#497492, #924974
Split complementary#495092, #8B4992
Tetradic#49928B, #674992, #924950
Tints, shades & saturation
Channel breakdown
R116
G146
B73
Red116 (45.5%)
Green146 (57.3%)
Blue73 (28.6%)
Hue84.66°
Saturation (HSL)33.33%
Lightness42.94%
Dominant channelGreen
Hex per channelR 74 · G 92 · B 49
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Harmonies
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