21461520 (number)
21461520 is an even 8-digits composite number following 21461519 and preceding 21461521. In scientific notation, it is written as 2.1461520 × 10^7. The sum of its digits is 21. It has a total of 7 prime factors and 40 positive divisors. There are 5683200 positive integers (up to 21461520) that are relatively prime to 21461520.
Interesting facts
- 21461520 has 40 divisors, whose sum is 44663808
- The reverse of 21461520 is 02516412
- Previous prime number is 223
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 21
- Digital Root 3
Name
| Name | twenty-one million four hundred sixty-one thousand five hundred twenty |
|---|
Notation
| Scientific notation | 2.1461520 × 10^7 |
|---|---|
| Engineering notation | 2.1461520 × 10^6 |
Prime Factorization of 21461520
Prime Factorization 2 × 2 × 2 × 2 × 15 × 223 × 401
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2682690 | Product of the distinct prime numbers |
The prime factorization of 21461520 is 2 × 2 × 2 × 2 × 15 × 223 × 401. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21461520)
Multiplication
n×y| n×2 | 42923040 |
|---|---|
| n×3 | 64384560 |
| n×4 | 85846080 |
| n×5 | 107307600 |
Division
n÷y| n÷2 | 10730760 |
|---|---|
| n÷3 | 7153840 |
| n÷3 | 5365380 |
| n÷5 | 4292304 |
Exponentiation
ny| n2 | 460596840710400 |
|---|---|
| n3 | 9.8851083088431E+21 |
| n4 | 2.121494496724E+29 |
| n5 | 4.5530496571332E+36 |
Nth Root
y√n| 2√n | 4632.6579843541 |
|---|---|
| 3√n | 277.89889876445 |
| 4√n | 68.063631877487 |
| 5√n | 29.263892682472 |
Divisors of 21461520
40 divisors
| τ | Total Divisors | 40 | Total number of the positive divisors of n |
|---|---|---|---|
| σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
| s | Aliquot Sum | -21461519 | Sum of the proper positive divisors of n |
| A | Arithmetic Mean | 0.025 | 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 | 40 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21461520 can be divided by 40 positive divisors. The sum of these divisors (counting 21461520) is 1, the average is 0.025.
Base conversion 21461520
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010001110111101000010000 |
| 3 | Ternary | 1111101100200010 |
| 4 | Quaternary | 1101313220100 |
| 5 | Quinary | 20443232040 |
| 6 | Senary | 2043554520 |
| 8 | Octal | 121675020 |
| 10 | Decimal | 21461520 |
| 12 | Duodecimal | 722ba40 |
| 16 | Hexadecimal | 1477a10 |
| 20 | Vigesimal | 6e2dg0 |
| 36 | Base36 | crztc |
Cryptographic Hash Functions
| md5 | d3ac55081f64b49119b091265250ebcb |
|---|---|
| sha1 | 0168065ba5ca553ed58e632831427ac4b5078e5d |
| sha256 | 94e0f403c4124d1ce86944a75b0aee53577e8c79fde189187c209010b9fbf237 |
| sha512 | 6b5c1f3c3e85bd9a8c8d0f63353400b30c5fb6e86b8c00337c0bfff6eca403370e81228e9ed70f16e83f304aeb276a6d21a1d0637e0a4d696b861dd774e19e10 |
| ripemd-160 | 424371e1e7e51d3ef04b3bb5a5fdf6ac64ff3ce0 |
21461520 as geometric shapes
Circle
Radius = n| Diameter | 42923040 |
|---|---|
| Circumference | 134846707.13374 |
| Area | 1.4470076510425E+15 |
Sphere
Radius = n| Volume | 4.1406644857334E+22 |
|---|---|
| Surface area | 5.7880306041698E+15 |
| Circumference | 134846707.13374 |
Square
Length = n| Perimeter | 85846080 |
|---|---|
| Area | 460596840710400 |
| Diagonal | 30351172.653141 |
Cube
Length = n| Surface area | 2763581044262400 |
|---|---|
| Volume | 9.8851083088431E+21 |
| Space diagonal | 37172443.047656 |
Equilateral Triangle
Length = n| Perimeter | 64384560 |
|---|---|
| Area | 1.9944428247903E+14 |
| Altitude | 18586221.523828 |
Triangular Pyramid
Length = n| Surface area | 1.9944428247903E+14 |
|---|---|
| Volume | 1.1649711863244E+21 |
| Height | 10117057.551047 |