Recognised as Number
801,429
- Positive
- Odd
- Composite
- 6 digits
801,429 is an odd 6-digit integer and a composite number. It has 4 divisors and a digital root of 6.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value801,429
Digit count6
Digit sum24
Digit product0zero, because one of the digits is zero
Multiplicative persistence1times the digit product can be taken before one digit is left
Digital root6repeated digit sum
PalindromicNoreads differently backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation3 × 267,143
Distinct prime factors23, 267,143
Number of divisors4
Sum of divisors σ(n)1,068,576
Aliquot sum267,147sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)534,284integers below n that share no factor with it
Carmichael function λ(n)267,142the smallest exponent with aˣ ≡ 1 for every unit; smaller than φ(n) = 534,284
Möbius function μ(n)+12 distinct prime factors, an even number of them
SquarefreeYesno repeated prime factor
All divisors1, 3, 267,143, 801,4294 in total
Arithmetic
Representations
Decimal801,429
Binary1100001110101001010120 bits
Octal3035225
HexadecimalC3A95
Base 36H6DX
Roman numeralNot defined above 3,999there is no agreed standard notation
In wordseight hundred and one thousand, four hundred and twenty-nine
Ordinaleight hundred and one thousand, four hundred and twenty-ninth
Scientific notation8.01429 × 10^5
Engineering notation801.429 × 10^3
In other bases
Ternary1111201100120base 3; the most digit-efficient integer base after e: 13 digits
Quinary201121204base 5; one hand: 9 digits
Septenary6545346base 7: 7 digits
Nonary1451316base 9; each digit is two ternary digits: 7 digits
Duodecimal327959base 12; divides by 2, 3, 4 and 6, which is why eggs and inches come in twelves: 6 digits
Vigesimal503b9base 20; hands and feet, and the Mayan and Yoruba systems: 5 digits
Sexagesimal3:42:37:9base 60; Babylonian, and still how an hour and a circle are divided: 4 digits
Balanced ternary1TTTTT01101TT0digits −1, 0 and +1 written T, 0 and 1; negation is swapping T and 1, so no sign is needed
Negabinary111000100111110010101base −2; place values alternate 1, −2, 4, −8, so every integer has exactly one form without a sign
Bit-level
00000000000011000011101010010101
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 95
Gray code10100010011111011111n XOR (n >> 1); successive values differ in exactly one bit
At each machine width
32-bit00000000000011000011101010010101
64-bit0000000000000000000000000000000000000000000011000011101010010101
One's complement11111111111100111100010101101010at 32 bits, every bit flipped
Bits reversed10101001010111000011000000000000at 32 bits
Rotated left by 100000000000110000111010100101010at 32 bits, wrapping
Shifted left by 1110000111010100101010= 1,602,858, no wrap
Shifted right by 11100001110101001010= 400,714, discarding the low bit
These bits as a double3.95958536 × 10^-318≈IEEE-754 binary64 reinterpretation of the same 64 bits (subnormal)
Nearest landmarks
Powers & multiples
801,429 to the power 2642,288,442,041
801,429 to the power 3514,748,583,816,476,589
801,429 to the power 4412,534,442,779,455,016,245,681
801,429 to the power 5330,617,065,942,295,854,214,759,878,149
First ten multiples801,429, 1,602,858, 2,404,287, 3,205,716, 4,007,145, 4,808,574, 5,610,003, 6,411,432, 7,212,861, 8,014,290
Powers of twoBetween 2^19 (524,288) and 2^20 (1,048,576)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3Yes
Divisible by 4No, remainder 1
Divisible by 5No, remainder 4
Divisible by 6No, remainder 3
Divisible by 7No, remainder 6
Divisible by 8No, remainder 5
Divisible by 9No, remainder 6
Divisible by 10No, remainder 9
Divisible by 11No, remainder 2
Divisible by 12No, remainder 9
Divisible by 100No, remainder 29
Collatz (3n + 1) trajectory
Steps to reach 1144the total stopping time
Highest value reached2,404,2883× the starting value
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps801,429 → 2,404,288 → 1,202,144 → 601,072 → 300,536 → 150,268 → 75,134 → 37,567 → 112,702 → 56,351 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage80,142,900%
801,429% as a decimal8,014.29
801,429% of 100801,429
801,429% of 1,0008,014,290
As a fraction of 100801,429/100
Read another way
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Derived from 801,429
Also reads as
#801429 (colour)
- #801429
- Red
- Dark
- Nearest: Brown
#801429 is a red with RGB values 128, 20, 41 and HSL 348°, 73%, 29%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Brown.
Colour values
#801429#801429
HEX#801429
RGBrgb(128, 20, 41)
RGB (0–1)0.502, 0.0784, 0.1608
RGB percentages50.2%, 7.8%, 16.1%
HSLhsl(348.3, 73%, 29%)
HSV / HSBhsv(348.3, 84.4%, 50.2%)
CMYK0%, 84.4%, 68%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,393,769
CSS custom property--colour: #801429;
Brightness & contrast
Relative luminance0.0525WCAG 2.x, 0 is black and 1 is white
Perceived brightness73 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.24:1
Contrast with white10.24:1WCAG normal text: AAA
Contrast with black2.05:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#7FEBD6
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.24:1WCAG large text: AAA
Contrast with black, large text2.05:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#14806B
Analogous#80145F, #803514
Triadic#298014, #142980
Split complementary#148035, #145F80
Tetradic#5F8014, #14806B, #351480
Tints, shades & saturation
Channel breakdown
R128
G20
B41
Red128 (50.2%)
Green20 (7.8%)
Blue41 (16.1%)
Hue348.33°
Saturation (HSL)72.97%
Lightness29.02%
Dominant channelRed
Hex per channelR 80 · G 14 · B 29
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