20685872 (number)
20685872 is an even 8-digits composite number following 20685871 and preceding 20685873. In scientific notation, it is written as 2.0685872 × 10^7. The sum of its digits is 38. It has a total of 7 prime factors and 40 positive divisors. There are 9562112 positive integers (up to 20685872) that are relatively prime to 20685872.
Interesting facts
- 20685872 has 40 divisors, whose sum is 43189200
- The reverse of 20685872 is 27858602
- Previous prime number is 17
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 38
- Digital Root 2
Name
| Name | twenty million six hundred eighty-five thousand eight hundred seventy-two |
|---|
Notation
| Scientific notation | 2.0685872 × 10^7 |
|---|---|
| Engineering notation | 2.0685872 × 10^6 |
Prime Factorization of 20685872
Prime Factorization 2 × 2 × 2 × 2 × 1289 × 17 × 59
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2585734 | Product of the distinct prime numbers |
The prime factorization of 20685872 is 2 × 2 × 2 × 2 × 1289 × 17 × 59. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 20685872)
Multiplication
n×y| n×2 | 41371744 |
|---|---|
| n×3 | 62057616 |
| n×4 | 82743488 |
| n×5 | 103429360 |
Division
n÷y| n÷2 | 10342936 |
|---|---|
| n÷3 | 6895290.6666667 |
| n÷3 | 5171468 |
| n÷5 | 4137174.4 |
Exponentiation
ny| n2 | 427905300400384 |
|---|---|
| n3 | 8.8515942722039E+21 |
| n4 | 1.8310294611074E+29 |
| n5 | 3.7876441060697E+36 |
Nth Root
y√n| 2√n | 4548.1723801984 |
|---|---|
| 3√n | 274.50985749872 |
| 4√n | 67.440139236203 |
| 5√n | 29.0492394615 |
Divisors of 20685872
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 | -20685871 | 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 20685872 can be divided by 40 positive divisors. The sum of these divisors (counting 20685872) is 1, the average is 0.025.
Base conversion 20685872
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1001110111010010000110000 |
| 3 | Ternary | 1102220221200102 |
| 4 | Quaternary | 1032322100300 |
| 5 | Quinary | 20243421442 |
| 6 | Senary | 2015211532 |
| 8 | Octal | 116722060 |
| 10 | Decimal | 20685872 |
| 12 | Duodecimal | 6b16ba8 |
| 16 | Hexadecimal | 13ba430 |
| 20 | Vigesimal | 695edc |
| 36 | Base36 | cbdbk |
Cryptographic Hash Functions
| md5 | f277cf81dbf8a0f5f51f30afa556b17d |
|---|---|
| sha1 | 6909b1149477a79d40b21557d13038c4d0868fd8 |
| sha256 | 440d33618ab14e4c77928bc91f658219a50e226d3f9f4c77b18de4b89fc75085 |
| sha512 | b80b26ea5ba112b37009ac91cd7745d0cd7b9fb6fb4e268eb3de94b2e612ceca518113efc3f0f9baca87a96ee5a1bc61ec1e9fbb22bfacc7e25f132d71989903 |
| ripemd-160 | 2e214a7be9f214334a6d2cc10a5e1f2ef009eafe |
20685872 as geometric shapes
Circle
Radius = n| Diameter | 41371744 |
|---|---|
| Circumference | 129973167.0166 |
| Area | 1.34430414817E+15 |
Sphere
Radius = n| Volume | 3.7077471384151E+22 |
|---|---|
| Surface area | 5.3772165926799E+15 |
| Circumference | 129973167.0166 |
Square
Length = n| Perimeter | 82743488 |
|---|---|
| Area | 427905300400384 |
| Diagonal | 29254240.731914 |
Cube
Length = n| Surface area | 2567431802402304 |
|---|---|
| Volume | 8.8515942722039E+21 |
| Space diagonal | 35828981.302866 |
Equilateral Triangle
Length = n| Perimeter | 62057616 |
|---|---|
| Area | 1.8528843028037E+14 |
| Altitude | 17914490.651433 |
Triangular Pyramid
Length = n| Surface area | 1.8528843028037E+14 |
|---|---|
| Volume | 1.0431703890312E+21 |
| Height | 9751413.5773046 |