21000408 (number)
21000408 is an even 8-digits composite number following 21000407 and preceding 21000409. In scientific notation, it is written as 2.1000408 × 10^7. The sum of its digits is 15. It has a total of 8 prime factors and 128 positive divisors. There are 5644800 positive integers (up to 21000408) that are relatively prime to 21000408.
Interesting facts
- 21000408 has 128 divisors, whose sum is 64108800
- The reverse of 21000408 is 80400012
- Previous prime number is 11
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 15
- Digital Root 6
Name
Name | twenty-one million four hundred eight |
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Notation
Scientific notation | 2.1000408 × 10^7 |
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Engineering notation | 2.1000408 × 10^6 |
Prime Factorization of 21000408
Prime Factorization 2 × 2 × 2 × 3 × 29 × 13 × 11 × 211
Composite numberω | Distinct Factors | 6 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 8 | Total number of prime factors |
rad | Radical | 5250102 | Product of the distinct prime numbers |
The prime factorization of 21000408 is 2 × 2 × 2 × 3 × 29 × 13 × 11 × 211. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21000408)
Multiplication
n×yn×2 | 42000816 |
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n×3 | 63001224 |
n×4 | 84001632 |
n×5 | 105002040 |
Division
n÷yn÷2 | 10500204 |
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n÷3 | 7000136 |
n÷3 | 5250102 |
n÷5 | 4200081.6 |
Exponentiation
nyn2 | 441017136166464 |
---|---|
n3 | 9.2615397944873E+21 |
n4 | 1.9449611439247E+29 |
n5 | 4.0844977566565E+36 |
Nth Root
y√n2√n | 4582.6202111892 |
---|---|
3√n | 275.89420435839 |
4√n | 67.695053077675 |
5√n | 29.137047802685 |
Divisors of 21000408
128 divisors
τ | Total Divisors | 128 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21000407 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.0078125 | 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 | 128 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21000408 can be divided by 128 positive divisors. The sum of these divisors (counting 21000408) is 1, the average is 0.0078125.
Base conversion 21000408
Base | System | Value |
---|---|---|
2 | Binary | 1010000000111000011011000 |
3 | Ternary | 1110111221010220 |
4 | Quaternary | 1100013003120 |
5 | Quinary | 20334003113 |
6 | Senary | 2030040040 |
8 | Octal | 120070330 |
10 | Decimal | 21000408 |
12 | Duodecimal | 7049020 |
16 | Hexadecimal | 14070d8 |
20 | Vigesimal | 6b5108 |
36 | Base36 | ci40o |
Cryptographic Hash Functions
md5 | 05b669625e284fa4d5bda79d6ae647f6 |
---|---|
sha1 | 7b937076d49e28958afaaca5b4d5ee72993df5c7 |
sha256 | 0f3f0c9f85355f3017026a3e960e033e0d842d188bf1d30b26c5a1f118a9bd7c |
sha512 | 959a5871b15467340b7df6af25ff0df159c7f4dc0c916df7bc7e8d767870ba38cfd6b40bb5ade879fc8b94b0e845279d7a417a6371d1c7331442526df5f01fec |
ripemd-160 | 4f6500856d4d0be24133f0d0e2416b899d0ec38c |
21000408 as geometric shapes
Circle
Radius = nDiameter | 42000816 |
---|---|
Circumference | 131949454.99038 |
Area | 1.3854961950878E+15 |
Sphere
Radius = nVolume | 3.8794647172388E+22 |
---|---|
Surface area | 5.5419847803511E+15 |
Circumference | 131949454.99038 |
Square
Length = nPerimeter | 84001632 |
---|---|
Area | 441017136166464 |
Diagonal | 29699061.808968 |
Cube
Length = nSurface area | 2646102816998784 |
---|---|
Volume | 9.2615397944873E+21 |
Space diagonal | 36373773.635676 |
Equilateral Triangle
Length = nPerimeter | 63001224 |
---|---|
Area | 1.9096602171221E+14 |
Altitude | 18186886.817838 |
Triangular Pyramid
Length = nSurface area | 1.9096602171221E+14 |
---|---|
Volume | 1.0914829321518E+21 |
Height | 9899687.2696561 |