Recognised as Number
801,379
- Positive
- Odd
- Prime
- 6 digits
801,379 is an odd 6-digit integer and a prime number. It has 2 divisors and a digital root of 1.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityPrime
Absolute value801,379
Digit count6
Digit sum28
Digit product0zero, because one of the digits is zero
Multiplicative persistence1times the digit product can be taken before one digit is left
Digital root1repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation801,379
Distinct prime factors1801,379
Number of divisors2
Sum of divisors σ(n)801,380
Aliquot sum1sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)801,378integers below n that share no factor with it
Carmichael function λ(n)801,378the 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, 801,3792 in total
Arithmetic
Representations
Decimal801,379
Binary1100001110100110001120 bits
Octal3035143
HexadecimalC3A63
Base 36H6CJ
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordseight hundred and one thousand, three hundred and seventy-nine
Ordinaleight hundred and one thousand, three hundred and seventy-ninth
Scientific notation8.01379 × 10^5
Engineering notation801.379 × 10^3
In other bases
Ternary1111201021201base 3; the most digit-efficient integer base after e: 13 digits
Quinary201121004base 5; one hand: 9 digits
Septenary6545245base 7: 7 digits
Nonary1451251base 9; each digit is two ternary digits: 7 digits
Duodecimal327917base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 6 digits
Vigesimal5038jbase 20; hands and feet, and the Mayan and Yoruba systems: 5 digits
Sexagesimal3:42:36:19base 60; Babylonian, and still how an hour and a circle are divided: 4 digits
Balanced ternary1TTTTT0110TT01digits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary111000100111110100111base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
00000000000011000011101001100011
Bit length20 bitsto write the magnitude
Set bits10the population count, or Hamming weight
Zero bits10within that length
Bit parityeven10 set bits, so even; not the same as the number itself being odd
Highest set bitbit 19worth 524,288
Lowest set bitbit 00 trailing zeros
Power of twoNo
Bytes30c 3a 63
Gray code10100010011101010010n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
32-bit00000000000011000011101001100011
64-bit0000000000000000000000000000000000000000000011000011101001100011
One's complement11111111111100111100010110011100at 32 bits, every bit flipped
Bits reversed11000110010111000011000000000000at 32 bits
Rotated left by 100000000000110000111010011000110at 32 bits, wrapping
Shifted left by 1110000111010011000110= 1,602,758, no wrap
Shifted right by 11100001110100110001= 400,689, discarding the low bit
These bits as a double3.95933833 × 10^-318≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Nearest landmarks
Powers & multiples
801,379 to the power 2642,208,301,641
801,379 to the power 3514,652,246,560,762,939
801,379 to the power 4412,431,502,696,617,643,292,881
801,379 to the power 5330,513,945,199,512,750,364,405,682,899
First ten multiples801,379, 1,602,758, 2,404,137, 3,205,516, 4,006,895, 4,808,274, 5,609,653, 6,411,032, 7,212,411, 8,013,790
Powers of twoBetween 2^19 (524,288) and 2^20 (1,048,576)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3No, remainder 1
Divisible by 4No, remainder 3
Divisible by 5No, remainder 4
Divisible by 6No, remainder 1
Divisible by 7No, remainder 5
Divisible by 8No, remainder 3
Divisible by 9No, remainder 1
Divisible by 10No, remainder 9
Divisible by 11No, remainder 7
Divisible by 12No, remainder 7
Divisible by 100No, remainder 79
Collatz (3n + 1) trajectory
Steps to reach 1144the total stopping time
Highest value reached3,606,2084× the starting value
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps801,379 → 2,404,138 → 1,202,069 → 3,606,208 → 1,803,104 → 901,552 → 450,776 → 225,388 → 112,694 → 56,347 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage80,137,900%
801,379% as a decimal8,013.79
801,379% of 100801,379
801,379% of 1,0008,013,790
As a fraction of 100801,379/100
Read another way
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Derived from 801,379
Also reads as
#801379 (colour)
- #801379
- Magenta
- Dark
- Nearest: Purple
#801379 is a magenta with RGB values 128, 19, 121 and HSL 304°, 74%, 29%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Purple.
Colour values
#801379#801379
HEX#801379
RGBrgb(128, 19, 121)
RGB (0–1)0.502, 0.0745, 0.4745
RGB percentages50.2%, 7.5%, 47.5%
HSLhsl(303.9, 74.1%, 28.8%)
HSV / HSBhsv(303.9, 85.2%, 50.2%)
CMYK0%, 85.2%, 5.5%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,393,593
CSS custom property--colour: #801379;
Brightness & contrast
Relative luminance0.06435WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.18:1
Contrast with white9.18:1WCAG normal text: AAA
Contrast with black2.29:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#7FEC86
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.18:1WCAG large text: AAA
Contrast with black, large text2.29:1WCAG large text: Fail
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#13801A
Analogous#501380, #801343
Triadic#798013, #137980
Split complementary#438013, #138050
Tetradic#805013, #13801A, #134380
Tints, shades & saturation
Channel breakdown
R128
G19
B121
Red128 (50.2%)
Green19 (7.5%)
Blue121 (47.5%)
Hue303.85°
Saturation (HSL)74.15%
Lightness28.82%
Dominant channelRed
Hex per channelR 80 · G 13 · B 79
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Harmonies
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