20688720 (number)
20688720 is an even 8-digits composite number following 20688719 and preceding 20688721. In scientific notation, it is written as 2.0688720 × 10^7. The sum of its digits is 33. It has a total of 7 prime factors and 40 positive divisors. There are 4810752 positive integers (up to 20688720) that are relatively prime to 20688720.
Interesting facts
- 20688720 has 40 divisors, whose sum is 43443400
- The reverse of 20688720 is 02788602
- Previous prime number is 13
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 33
- Digital Root 6
Name
| Name | twenty million six hundred eighty-eight thousand seven hundred twenty |
|---|
Notation
| Scientific notation | 2.0688720 × 10^7 |
|---|---|
| Engineering notation | 2.0688720 × 10^6 |
Prime Factorization of 20688720
Prime Factorization 2 × 2 × 2 × 2 × 285 × 13 × 349
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2586090 | Product of the distinct prime numbers |
The prime factorization of 20688720 is 2 × 2 × 2 × 2 × 285 × 13 × 349. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 20688720)
Multiplication
n×y| n×2 | 41377440 |
|---|---|
| n×3 | 62066160 |
| n×4 | 82754880 |
| n×5 | 103443600 |
Division
n÷y| n÷2 | 10344360 |
|---|---|
| n÷3 | 6896240 |
| n÷3 | 5172180 |
| n÷5 | 4137744 |
Exponentiation
ny| n2 | 428023135238400 |
|---|---|
| n3 | 8.8552507984694E+21 |
| n4 | 1.8320380429931E+29 |
| n5 | 3.7902522100832E+36 |
Nth Root
y√n| 2√n | 4548.4854622171 |
|---|---|
| 3√n | 274.52245495651 |
| 4√n | 67.44246038081 |
| 5√n | 29.050039308644 |
Divisors of 20688720
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 | -20688719 | 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 20688720 can be divided by 40 positive divisors. The sum of these divisors (counting 20688720) is 1, the average is 0.025.
Base conversion 20688720
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1001110111010111101010000 |
| 3 | Ternary | 1102221002120220 |
| 4 | Quaternary | 1032322331100 |
| 5 | Quinary | 20244014340 |
| 6 | Senary | 2015233040 |
| 8 | Octal | 116727520 |
| 10 | Decimal | 20688720 |
| 12 | Duodecimal | 6b18780 |
| 16 | Hexadecimal | 13baf50 |
| 20 | Vigesimal | 6961g0 |
| 36 | Base36 | cbfio |
Cryptographic Hash Functions
| md5 | fb4547cf6d634e2380f8c5d75529f935 |
|---|---|
| sha1 | b1db9ecdf77e48b88cbf478239901ee94cdb4271 |
| sha256 | a61a4b1e3dc1e74a77cb1e48f760879716dff18738d6402c76a88ad186e2cbb9 |
| sha512 | 435421d03eed718b1c203241bfd027be6b32e8e92e98627005ded5c8117e7f7baf94339e50b96d95a726596be8339cfd915816d7a7f11ddcdac8d55caf731e2a |
| ripemd-160 | 6e1b7b7ec1c9f2da602e2cde9c6d9378a33b44e3 |
20688720 as geometric shapes
Circle
Radius = n| Diameter | 41377440 |
|---|---|
| Circumference | 129991061.52835 |
| Area | 1.3446743372314E+15 |
Sphere
Radius = n| Volume | 3.7092787805555E+22 |
|---|---|
| Surface area | 5.3786973489257E+15 |
| Circumference | 129991061.52835 |
Square
Length = n| Perimeter | 82754880 |
|---|---|
| Area | 428023135238400 |
| Diagonal | 29258268.41214 |
Cube
Length = n| Surface area | 2568138811430400 |
|---|---|
| Volume | 8.8552507984694E+21 |
| Space diagonal | 35833914.183566 |
Equilateral Triangle
Length = n| Perimeter | 62066160 |
|---|---|
| Area | 1.8533945426196E+14 |
| Altitude | 17916957.091783 |
Triangular Pyramid
Length = n| Surface area | 1.8533945426196E+14 |
|---|---|
| Volume | 1.0436013147842E+21 |
| Height | 9752756.1373798 |