21000492 (number)
21000492 is an even 8-digits composite number following 21000491 and preceding 21000493. In scientific notation, it is written as 2.1000492 × 10^7. The sum of its digits is 18. It has a total of 6 prime factors and 48 positive divisors. There are 6967296 positive integers (up to 21000492) that are relatively prime to 21000492.
Interesting facts
- 21000492 has 48 divisors, whose sum is 54701920
- The reverse of 21000492 is 29400012
- Previous prime number is 337
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 18
- Digital Root 9
Name
Name | twenty-one million four hundred ninety-two |
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Notation
Scientific notation | 2.1000492 × 10^7 |
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Engineering notation | 2.1000492 × 10^6 |
Prime Factorization of 21000492
Prime Factorization 2 × 2 × 3 × 9 × 337 × 577
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 10500246 | Product of the distinct prime numbers |
The prime factorization of 21000492 is 2 × 2 × 3 × 9 × 337 × 577. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21000492)
Multiplication
n×yn×2 | 42000984 |
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n×3 | 63001476 |
n×4 | 84001968 |
n×5 | 105002460 |
Division
n÷yn÷2 | 10500246 |
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n÷3 | 7000164 |
n÷3 | 5250123 |
n÷5 | 4200098.4 |
Exponentiation
nyn2 | 441020664242064 |
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n3 | 9.2616509312502E+21 |
n4 | 1.9449922628851E+29 |
n5 | 4.0845794456781E+36 |
Nth Root
y√n2√n | 4582.6293762424 |
---|---|
3√n | 275.89457220969 |
4√n | 67.695120771311 |
5√n | 29.137071111833 |
Divisors of 21000492
48 divisors
τ | Total Divisors | 48 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21000491 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.020833333333333 | 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 | 48 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21000492 can be divided by 48 positive divisors. The sum of these divisors (counting 21000492) is 1, the average is 0.020833333333333.
Base conversion 21000492
Base | System | Value |
---|---|---|
2 | Binary | 1010000000111000100101100 |
3 | Ternary | 1110111221021000 |
4 | Quaternary | 1100013010230 |
5 | Quinary | 20334003432 |
6 | Senary | 2030040300 |
8 | Octal | 120070454 |
10 | Decimal | 21000492 |
12 | Duodecimal | 7049090 |
16 | Hexadecimal | 140712c |
20 | Vigesimal | 6b514c |
36 | Base36 | ci430 |
Cryptographic Hash Functions
md5 | 16d1621ab73dbab6d49b3e1f4d2ab9fd |
---|---|
sha1 | c7f2df5ff54ad0b4229ace524d25359c0850021f |
sha256 | 9c668f690571b9dc27fe9d860c86fd4bebdc2f424035aca82d605e6c8f0470fc |
sha512 | 92f3fc9da7cbd1f4944df5e5fe091d2961fee2c6cdda27d2d81ca0384a82a8aaeab78e2993780e7129f8b419b1039093fc2210ba37ccd3275c30b5455dbf19f3 |
ripemd-160 | 2098261022cde199e340f5f690f30c55e8506482 |
21000492 as geometric shapes
Circle
Radius = nDiameter | 42000984 |
---|---|
Circumference | 131949982.77794 |
Area | 1.3855072788642E+15 |
Sphere
Radius = nVolume | 3.8795112700971E+22 |
---|---|
Surface area | 5.5420291154566E+15 |
Circumference | 131949982.77794 |
Square
Length = nPerimeter | 84001968 |
---|---|
Area | 441020664242064 |
Diagonal | 29699180.602908 |
Cube
Length = nSurface area | 2646123985452384 |
---|---|
Volume | 9.2616509312502E+21 |
Space diagonal | 36373919.127944 |
Equilateral Triangle
Length = nPerimeter | 63001476 |
---|---|
Area | 1.9096754941376E+14 |
Altitude | 18186959.563972 |
Triangular Pyramid
Length = nSurface area | 1.9096754941376E+14 |
---|---|
Volume | 1.0914960297449E+21 |
Height | 9899726.8676359 |