21686912 (number)
21686912 is an even 8-digits composite number following 21686911 and preceding 21686913. In scientific notation, it is written as 2.1686912 × 10^7. The sum of its digits is 35. It has a total of 9 prime factors and 32 positive divisors. There are 10008576 positive integers (up to 21686912) that are relatively prime to 21686912.
Interesting facts
- 21686912 has 32 divisors, whose sum is 46531380
- The reverse of 21686912 is 21968612
- Previous prime number is 13
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 35
- Digital Root 8
Name
Name | twenty-one million six hundred eighty-six thousand nine hundred twelve |
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Notation
Scientific notation | 2.1686912 × 10^7 |
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Engineering notation | 2.1686912 × 10^6 |
Prime Factorization of 21686912
Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 13033
Composite numberω | Distinct Factors | 3 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 9 | Total number of prime factors |
rad | Radical | 338858 | Product of the distinct prime numbers |
The prime factorization of 21686912 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 13033. Since it has a total of 9 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21686912)
Multiplication
n×yn×2 | 43373824 |
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n×3 | 65060736 |
n×4 | 86747648 |
n×5 | 108434560 |
Division
n÷yn÷2 | 10843456 |
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n÷3 | 7228970.6666667 |
n÷3 | 5421728 |
n÷5 | 4337382.4 |
Exponentiation
nyn2 | 470322152095744 |
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n3 | 1.0199835124151E+22 |
n4 | 2.2120292675197E+29 |
n5 | 4.7972084066125E+36 |
Nth Root
y√n2√n | 4656.9208711336 |
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3√n | 278.86835770921 |
4√n | 68.241635906048 |
5√n | 29.325102814886 |
Divisors of 21686912
32 divisors
τ | Total Divisors | 32 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -21686911 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.03125 | 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 | 32 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21686912 can be divided by 32 positive divisors. The sum of these divisors (counting 21686912) is 1, the average is 0.03125.
Base conversion 21686912
Base | System | Value |
---|---|---|
2 | Binary | 1010010101110101010000000 |
3 | Ternary | 1111210210211222 |
4 | Quaternary | 1102232222000 |
5 | Quinary | 21022440122 |
6 | Senary | 2052454212 |
8 | Octal | 122565200 |
10 | Decimal | 21686912 |
12 | Duodecimal | 731a368 |
16 | Hexadecimal | 14aea80 |
20 | Vigesimal | 6fah5c |
36 | Base36 | cwtq8 |
Cryptographic Hash Functions
md5 | 7a99f14b2130fd28bed9994505530129 |
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sha1 | ecad4f68912405d4be19778fa4c5413c9dbf68af |
sha256 | 9cd9941769c61874fe244d823684c4866810e8a393cbc03ceeb970a90617c7cf |
sha512 | e5c9ace32bafbf15cec72a5d6b90ce566659a0ffcc09905445759a74cf46239c3e29d80fe5d0f1722061a58e7cf9a1b481fd4a3da2d76b8e80671b6eaeeeb476 |
ripemd-160 | 2053cb81b758cb3f11bce657945d0eb3b00235c7 |
21686912 as geometric shapes
Circle
Radius = nDiameter | 43373824 |
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Circumference | 136262886.8365 |
Area | 1.4775606178445E+15 |
Sphere
Radius = nVolume | 4.272496945848E+22 |
---|---|
Surface area | 5.9102424713781E+15 |
Circumference | 136262886.8365 |
Square
Length = nPerimeter | 86747648 |
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Area | 470322152095744 |
Diagonal | 30669925.076392 |
Cube
Length = nSurface area | 2821932912574464 |
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Volume | 1.0199835124151E+22 |
Space diagonal | 37562833.443275 |
Equilateral Triangle
Length = nPerimeter | 65060736 |
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Area | 2.0365546583874E+14 |
Altitude | 18781416.721638 |
Triangular Pyramid
Length = nSurface area | 2.0365546583874E+14 |
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Volume | 1.202062097212E+21 |
Height | 10223308.358797 |