21372720 (number)
21372720 is an even 8-digits composite number following 21372719 and preceding 21372721. In scientific notation, it is written as 2.1372720 × 10^7. The sum of its digits is 24. It has a total of 8 prime factors and 80 positive divisors. There are 5225472 positive integers (up to 21372720) that are relatively prime to 21372720.
Interesting facts
- 21372720 has 80 divisors, whose sum is 66945120
- The reverse of 21372720 is 02727312
- Previous prime number is 817
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 24
- Digital Root 6
Name
Name | twenty-one million three hundred seventy-two thousand seven hundred twenty |
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Notation
Scientific notation | 2.1372720 × 10^7 |
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Engineering notation | 2.1372720 × 10^6 |
Prime Factorization of 21372720
Prime Factorization 2 × 2 × 2 × 2 × 3 × 5 × 817 × 109
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 8 | Total number of prime factors |
rad | Radical | 2671590 | Product of the distinct prime numbers |
The prime factorization of 21372720 is 2 × 2 × 2 × 2 × 3 × 5 × 817 × 109. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21372720)
Multiplication
n×yn×2 | 42745440 |
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n×3 | 64118160 |
n×4 | 85490880 |
n×5 | 106863600 |
Division
n÷yn÷2 | 10686360 |
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n÷3 | 7124240 |
n÷3 | 5343180 |
n÷5 | 4274544 |
Exponentiation
nyn2 | 456793160198400 |
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n3 | 9.7629123108355E+21 |
n4 | 2.0865999120404E+29 |
n5 | 4.4596315672064E+36 |
Nth Root
y√n2√n | 4623.0639190909 |
---|---|
3√n | 277.51508724075 |
4√n | 67.993116703758 |
5√n | 29.239635824052 |
Divisors of 21372720
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 | -21372719 | 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 21372720 can be divided by 80 positive divisors. The sum of these divisors (counting 21372720) is 1, the average is 0.0125.
Base conversion 21372720
Base | System | Value |
---|---|---|
2 | Binary | 1010001100001111100110000 |
3 | Ternary | 1111012211212020 |
4 | Quaternary | 1101201330300 |
5 | Quinary | 20432411340 |
6 | Senary | 2042031440 |
8 | Octal | 121417460 |
10 | Decimal | 21372720 |
12 | Duodecimal | 71a8580 |
16 | Hexadecimal | 1461f30 |
20 | Vigesimal | 6dbbg0 |
36 | Base36 | cq3ao |
Cryptographic Hash Functions
md5 | 2a497a7d2abedc2c1f455066c1fdf67b |
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sha1 | 04a257027f2f74f4ef6b027afc19d563b25952bc |
sha256 | 7920b5353dad66d6e58b1672e88b80f48bba173add11b6eb8b1a868b7ef0cbe6 |
sha512 | 7bcb67e8a36178fdf77d45565f9e3ac8077d65bcb721a92b8d37f19e6282fa0d36e22cd07e58073f7863571e66835cfdc77771132ea5bf1155b2b048129636b6 |
ripemd-160 | 34dffa7dc8ef8d2580729f3521d536f34decb89e |
21372720 as geometric shapes
Circle
Radius = nDiameter | 42745440 |
---|---|
Circumference | 134288760.27846 |
Area | 1.4350580362894E+15 |
Sphere
Radius = nVolume | 4.0894791457816E+22 |
---|---|
Surface area | 5.7402321451574E+15 |
Circumference | 134288760.27846 |
Square
Length = nPerimeter | 85490880 |
---|---|
Area | 456793160198400 |
Diagonal | 30225590.488803 |
Cube
Length = nSurface area | 2740758961190400 |
---|---|
Volume | 9.7629123108355E+21 |
Space diagonal | 37018636.935943 |
Equilateral Triangle
Length = nPerimeter | 64118160 |
---|---|
Area | 1.9779724050339E+14 |
Altitude | 18509318.467972 |
Triangular Pyramid
Length = nSurface area | 1.9779724050339E+14 |
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Volume | 1.1505702498536E+21 |
Height | 10075196.829601 |