21556720 (number)
21556720 is an even 8-digits composite number following 21556719 and preceding 21556721. In scientific notation, it is written as 2.1556720 × 10^7. The sum of its digits is 28. It has a total of 7 prime factors and 40 positive divisors. There are 8589312 positive integers (up to 21556720) that are relatively prime to 21556720.
Interesting facts
- 21556720 has 40 divisors, whose sum is 50313744
- The reverse of 21556720 is 02765512
- Previous prime number is 577
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 28
- Digital Root 1
Name
| Name | twenty-one million five hundred fifty-six thousand seven hundred twenty |
|---|
Notation
| Scientific notation | 2.1556720 × 10^7 |
|---|---|
| Engineering notation | 2.1556720 × 10^6 |
Prime Factorization of 21556720
Prime Factorization 2 × 2 × 2 × 2 × 5 × 577 × 467
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2694590 | Product of the distinct prime numbers |
The prime factorization of 21556720 is 2 × 2 × 2 × 2 × 5 × 577 × 467. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21556720)
Multiplication
n×y| n×2 | 43113440 |
|---|---|
| n×3 | 64670160 |
| n×4 | 86226880 |
| n×5 | 107783600 |
Division
n÷y| n÷2 | 10778360 |
|---|---|
| n÷3 | 7185573.3333333 |
| n÷3 | 5389180 |
| n÷5 | 4311344 |
Exponentiation
ny| n2 | 464692177158400 |
|---|---|
| n3 | 1.0017239149194E+22 |
| n4 | 2.1593881951221E+29 |
| n5 | 4.6549326693553E+36 |
Nth Root
y√n| 2√n | 4642.9214940595 |
|---|---|
| 3√n | 278.30919826899 |
| 4√n | 68.138986594016 |
| 5√n | 29.28980876418 |
Divisors of 21556720
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 | -21556719 | 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 21556720 can be divided by 40 positive divisors. The sum of these divisors (counting 21556720) is 1, the average is 0.025.
Base conversion 21556720
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010010001110110111110000 |
| 3 | Ternary | 1111120012021001 |
| 4 | Quaternary | 1102032313300 |
| 5 | Quinary | 21004303340 |
| 6 | Senary | 2050011344 |
| 8 | Octal | 122166760 |
| 10 | Decimal | 21556720 |
| 12 | Duodecimal | 7276b54 |
| 16 | Hexadecimal | 148edf0 |
| 20 | Vigesimal | 6eebg0 |
| 36 | Base36 | cu19s |
Cryptographic Hash Functions
| md5 | 6f9859f1ff199f3f409f456b1c1ba2d0 |
|---|---|
| sha1 | c5680811047a21acda3ee9f22a4f0b05785d0525 |
| sha256 | 7193c94986e862668f3d33bb6e16921debc925aaec52eb5d968e31729488dd57 |
| sha512 | dc4cc454b830d9e225875ca701dccb0e7c33b686efaa24424cd2fdac5dd01a133f1408712f080d0db171c379822e02434db1faa3250d3f988e62e55efdc27586 |
| ripemd-160 | 89d21e12e9cc6a96388ea5cebeb9962e74fc005b |
21556720 as geometric shapes
Circle
Radius = n| Diameter | 43113440 |
|---|---|
| Circumference | 135444866.37498 |
| Area | 1.4598735299415E+15 |
Sphere
Radius = n| Volume | 4.1960113227147E+22 |
|---|---|
| Surface area | 5.8394941197659E+15 |
| Circumference | 135444866.37498 |
Square
Length = n| Perimeter | 86226880 |
|---|---|
| Area | 464692177158400 |
| Diagonal | 30485805.784279 |
Cube
Length = n| Surface area | 2788153062950400 |
|---|---|
| Volume | 1.0017239149194E+22 |
| Space diagonal | 37337334.284536 |
Equilateral Triangle
Length = n| Perimeter | 64670160 |
|---|---|
| Area | 2.0121761517954E+14 |
| Altitude | 18668667.142268 |
Triangular Pyramid
Length = n| Surface area | 2.0121761517954E+14 |
|---|---|
| Volume | 1.1805429551937E+21 |
| Height | 10161935.261426 |