21371856 (number)
21371856 is an even 8-digits composite number following 21371855 and preceding 21371857. In scientific notation, it is written as 2.1371856 × 10^7. The sum of its digits is 33. It has a total of 8 prime factors and 80 positive divisors. There are 6092800 positive integers (up to 21371856) that are relatively prime to 21371856.
Interesting facts
- 21371856 has 80 divisors, whose sum is 63799488
- The reverse of 21371856 is 65817312
- Previous prime number is 11
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 33
- Digital Root 6
Name
Name | twenty-one million three hundred seventy-one thousand eight hundred fifty-six |
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Notation
Scientific notation | 2.1371856 × 10^7 |
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Engineering notation | 2.1371856 × 10^6 |
Prime Factorization of 21371856
Prime Factorization 2 × 2 × 2 × 2 × 3 × 17 × 11 × 2381
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 8 | Total number of prime factors |
rad | Radical | 2671482 | Product of the distinct prime numbers |
The prime factorization of 21371856 is 2 × 2 × 2 × 2 × 3 × 17 × 11 × 2381. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21371856)
Multiplication
n×yn×2 | 42743712 |
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n×3 | 64115568 |
n×4 | 85487424 |
n×5 | 106859280 |
Division
n÷yn÷2 | 10685928 |
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n÷3 | 7123952 |
n÷3 | 5342964 |
n÷5 | 4274371.2 |
Exponentiation
nyn2 | 456756228884736 |
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n3 | 9.7617283508276E+21 |
n4 | 2.0862625262501E+29 |
n5 | 4.4587302289212E+36 |
Nth Root
y√n2√n | 4622.9704736241 |
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3√n | 277.51134764082 |
4√n | 67.992429531707 |
5√n | 29.239399415641 |
Divisors of 21371856
80 divisors
τ | Total Divisors | 80 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21371855 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.0125 | 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 | 80 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21371856 can be divided by 80 positive divisors. The sum of these divisors (counting 21371856) is 1, the average is 0.0125.
Base conversion 21371856
Base | System | Value |
---|---|---|
2 | Binary | 1010001100001101111010000 |
3 | Ternary | 1111012210200020 |
4 | Quaternary | 1101201233100 |
5 | Quinary | 20432344411 |
6 | Senary | 2042023440 |
8 | Octal | 121415720 |
10 | Decimal | 21371856 |
12 | Duodecimal | 71a7b80 |
16 | Hexadecimal | 1461bd0 |
20 | Vigesimal | 6db9cg |
36 | Base36 | cq2mo |
Cryptographic Hash Functions
md5 | 1b2f851e515d53d20dc9c0377e7dfea9 |
---|---|
sha1 | 5360a592b3f4d7416817e51113adf67ac64a234c |
sha256 | 15226195cb7bdb57a5020873b0ac0db3c91c3507c2f183d09a3760befa7c0ffa |
sha512 | fd872b4e0a9e7f52d322e13c1436a1a713df7e1b4961158992a903e30c5b66398a9e1911242c2f316f52c6194eaf9a0e65c23d205ad2cdb6dac5f9d2e3da7e26 |
ripemd-160 | 7be7ad42db29cdda624e411ec505f93478cd2fc7 |
21371856 as geometric shapes
Circle
Radius = nDiameter | 42743712 |
---|---|
Circumference | 134283331.60636 |
Area | 1.4349420131457E+15 |
Sphere
Radius = nVolume | 4.0889832097732E+22 |
---|---|
Surface area | 5.7397680525827E+15 |
Circumference | 134283331.60636 |
Square
Length = nPerimeter | 85487424 |
---|---|
Area | 456756228884736 |
Diagonal | 30224368.608285 |
Cube
Length = nSurface area | 2740537373308416 |
---|---|
Volume | 9.7617283508276E+21 |
Space diagonal | 37017140.444046 |
Equilateral Triangle
Length = nPerimeter | 64115568 |
---|---|
Area | 1.9778124877548E+14 |
Altitude | 18508570.222023 |
Triangular Pyramid
Length = nSurface area | 1.9778124877548E+14 |
---|---|
Volume | 1.1504307188285E+21 |
Height | 10074789.536095 |