129628920 (number)
129628920 is an even 9-digits composite number following 129628919 and preceding 129628921. In scientific notation, it is written as 1.29628920 × 10^8. The sum of its digits is 39. It has a total of 7 prime factors and 64 positive divisors. There are 32524800 positive integers (up to 129628920) that are relatively prime to 129628920.
Interesting facts
- 129628920 has 64 divisors, whose sum is 300736800
- The reverse of 129628920 is 029826921
- Previous prime number is 67
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 39
- Digital Root 3
Name
Name | one hundred twenty-nine million six hundred twenty-eight thousand nine hundred twenty |
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Notation
Scientific notation | 1.29628920 × 10^8 |
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Engineering notation | 1.29628920 × 10^6 |
Prime Factorization of 129628920
Prime Factorization 2 × 2 × 2 × 69 × 5 × 67 × 701
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 32407230 | Product of the distinct prime numbers |
The prime factorization of 129628920 is 2 × 2 × 2 × 69 × 5 × 67 × 701. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 129628920)
Multiplication
n×yn×2 | 259257840 |
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n×3 | 388886760 |
n×4 | 518515680 |
n×5 | 648144600 |
Division
n÷yn÷2 | 64814460 |
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n÷3 | 43209640 |
n÷3 | 32407230 |
n÷5 | 25925784 |
Exponentiation
nyn2 | 16803656900366400 |
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n3 | 2.178239896045E+24 |
n4 | 2.8236288522523E+32 |
n5 | 3.6602395859831E+40 |
Nth Root
y√n2√n | 11385.469687281 |
---|---|
3√n | 506.09723846895 |
4√n | 106.70271640067 |
5√n | 41.931498263015 |
Divisors of 129628920
64 divisors
τ | Total Divisors | 64 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -129628919 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.015625 | Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) |
G | Geometric Mean | 1 | Returns the nth root of the product of n divisors |
H | Harmonic Mean | 64 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 129628920 can be divided by 64 positive divisors. The sum of these divisors (counting 129628920) is 1, the average is 0.015625.
Base conversion 129628920
Base | System | Value |
---|---|---|
2 | Binary | 111101110011111101011111000 |
3 | Ternary | 100000220211110010 |
4 | Quaternary | 13232133223320 |
5 | Quinary | 231141111140 |
6 | Senary | 20510221520 |
8 | Octal | 756375370 |
10 | Decimal | 129628920 |
12 | Duodecimal | 374b48a0 |
16 | Hexadecimal | 7b9faf8 |
20 | Vigesimal | 20a3c60 |
36 | Base36 | 256ebc |
Cryptographic Hash Functions
md5 | 5ea670bc8fc7d912e7e8f7a546446762 |
---|---|
sha1 | 393f00fcc0baefb155a29139ad14e4fa73770113 |
sha256 | 0073824215000f03b6c29cc7e8bb078f8eecb774d55266962a1235baeb63c700 |
sha512 | e997c329b980edb22fbd4766270b3afd1c57bd1a0b5b04957a71e7163e9b428bfb011462eb9bc16431904f0b0819a78d9f177cc44f68174fa9361bf0c51236d7 |
ripemd-160 | d485611d69efedbcd42171dac3ba34db6b276e63 |
129628920 as geometric shapes
Circle
Radius = nDiameter | 259257840 |
---|---|
Circumference | 814482525.52956 |
Area | 5.2790245071635E+16 |
Sphere
Radius = nVolume | 9.1241899402284E+24 |
---|---|
Surface area | 2.1116098028654E+17 |
Circumference | 814482525.52956 |
Square
Length = nPerimeter | 518515680 |
---|---|
Area | 16803656900366400 |
Diagonal | 183322976.73978 |
Cube
Length = nSurface area | 100821941402198400 |
---|---|
Volume | 2.178239896045E+24 |
Space diagonal | 224523875.57028 |
Equilateral Triangle
Length = nPerimeter | 388886760 |
---|---|
Area | 7.2761968760975E+15 |
Altitude | 112261937.78514 |
Triangular Pyramid
Length = nSurface area | 7.2761968760975E+15 |
---|---|
Volume | 2.5670803359076E+23 |
Height | 61107658.913259 |