21081432 (number)
21081432 is an even 8-digits composite number following 21081431 and preceding 21081433. In scientific notation, it is written as 2.1081432 × 10^7. The sum of its digits is 21. It has a total of 7 prime factors and 64 positive divisors. There are 6652800 positive integers (up to 21081432) that are relatively prime to 21081432.
Interesting facts
- 21081432 has 64 divisors, whose sum is 55560960
- The reverse of 21081432 is 23418012
- Previous prime number is 181
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 21
- Digital Root 3
Name
Name | twenty-one million eighty-one thousand four hundred thirty-two |
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Notation
Scientific notation | 2.1081432 × 10^7 |
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Engineering notation | 2.1081432 × 10^6 |
Prime Factorization of 21081432
Prime Factorization 2 × 2 × 2 × 3 × 23 × 181 × 211
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 7 | Total number of prime factors |
rad | Radical | 5270358 | Product of the distinct prime numbers |
The prime factorization of 21081432 is 2 × 2 × 2 × 3 × 23 × 181 × 211. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21081432)
Multiplication
n×yn×2 | 42162864 |
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n×3 | 63244296 |
n×4 | 84325728 |
n×5 | 105407160 |
Division
n÷yn÷2 | 10540716 |
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n÷3 | 7027144 |
n÷3 | 5270358 |
n÷5 | 4216286.4 |
Exponentiation
nyn2 | 444426775170624 |
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n3 | 9.3691528397388E+21 |
n4 | 1.9751515848856E+29 |
n5 | 4.1639023826458E+36 |
Nth Root
y√n2√n | 4591.4520579006 |
---|---|
3√n | 276.24856834021 |
4√n | 67.760254263843 |
5√n | 29.159496558793 |
Divisors of 21081432
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 | -21081431 | 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 21081432 can be divided by 64 positive divisors. The sum of these divisors (counting 21081432) is 1, the average is 0.015625.
Base conversion 21081432
Base | System | Value |
---|---|---|
2 | Binary | 1010000011010110101011000 |
3 | Ternary | 1110200001021210 |
4 | Quaternary | 1100122311120 |
5 | Quinary | 20344101212 |
6 | Senary | 2031503120 |
8 | Octal | 120326530 |
10 | Decimal | 21081432 |
12 | Duodecimal | 7087aa0 |
16 | Hexadecimal | 141ad58 |
20 | Vigesimal | 6bf3bc |
36 | Base36 | cjujc |
Cryptographic Hash Functions
md5 | 3d0c1fcdeac34958c03106ad1060b237 |
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sha1 | ed7a159d94c25a700eaa380447b8d3686c3adc28 |
sha256 | 70d2f913dcca75aae6e1569dcad53ffbda5938ab4ea811b516db01ade9815139 |
sha512 | f01b9065d2980faa04aa4790a4049cc01b9ff5aa7ec4120301f32f39e10a0f16e8437942ded043aeea68b9c44b801b03827dc130615c739e8ae09a06fa8e3527 |
ripemd-160 | 2596f3ca2f3e3e454d409fb4666553c983240304 |
21081432 as geometric shapes
Circle
Radius = nDiameter | 42162864 |
---|---|
Circumference | 132458543.79671 |
Area | 1.3962078919346E+15 |
Sphere
Radius = nVolume | 3.9245415642244E+22 |
---|---|
Surface area | 5.5848315677385E+15 |
Circumference | 132458543.79671 |
Square
Length = nPerimeter | 84325728 |
---|---|
Area | 444426775170624 |
Diagonal | 29813647.048646 |
Cube
Length = nSurface area | 2666560651023744 |
---|---|
Volume | 9.3691528397388E+21 |
Space diagonal | 36514111.320308 |
Equilateral Triangle
Length = nPerimeter | 63244296 |
---|---|
Area | 1.9244243870988E+14 |
Altitude | 18257055.660154 |
Triangular Pyramid
Length = nSurface area | 1.9244243870988E+14 |
---|---|
Volume | 1.1041652511588E+21 |
Height | 9937882.3495487 |