12821808 (number)
12821808 is an even 8-digits composite number following 12821807 and preceding 12821809. In scientific notation, it is written as 1.2821808 × 10^7. The sum of its digits is 30. It has a total of 8 prime factors and 80 positive divisors. There are 3806208 positive integers (up to 12821808) that are relatively prime to 12821808.
Interesting facts
- 12821808 has 80 divisors, whose sum is 36961920
- The reverse of 12821808 is 80812821
- Previous prime number is 19
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 30
- Digital Root 3
Name
| Name | twelve million eight hundred twenty-one thousand eight hundred eight |
|---|
Notation
| Scientific notation | 1.2821808 × 10^7 |
|---|---|
| Engineering notation | 1.2821808 × 10^6 |
Prime Factorization of 12821808
Prime Factorization 2 × 2 × 2 × 2 × 3 × 17 × 19 × 827
Composite number| ω | Distinct Factors | 5 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 8 | Total number of prime factors |
| rad | Radical | 1602726 | Product of the distinct prime numbers |
The prime factorization of 12821808 is 2 × 2 × 2 × 2 × 3 × 17 × 19 × 827. Since it has a total of 8 prime factors.
Most popular turbo-numbers
Basic calculations (n = 12821808)
Multiplication
n×y| n×2 | 25643616 |
|---|---|
| n×3 | 38465424 |
| n×4 | 51287232 |
| n×5 | 64109040 |
Division
n÷y| n÷2 | 6410904 |
|---|---|
| n÷3 | 4273936 |
| n÷3 | 3205452 |
| n÷5 | 2564361.6 |
Exponentiation
ny| n2 | 164398760388864 |
|---|---|
| n3 | 2.107889341144E+21 |
| n4 | 2.7026952417395E+28 |
| n5 | 3.4653439472098E+35 |
Nth Root
y√n| 2√n | 3580.7552276021 |
|---|---|
| 3√n | 234.05419155441 |
| 4√n | 59.83941199245 |
| 5√n | 26.399144539775 |
Divisors of 12821808
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 | -12821807 | 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 12821808 can be divided by 80 positive divisors. The sum of these divisors (counting 12821808) is 1, the average is 0.0125.
Base conversion 12821808
| Base | System | Value |
|---|---|---|
| 2 | Binary | 110000111010010100110000 |
| 3 | Ternary | 220010102012210 |
| 4 | Quaternary | 300322110300 |
| 5 | Quinary | 11240244213 |
| 6 | Senary | 1134452120 |
| 8 | Octal | 60722460 |
| 10 | Decimal | 12821808 |
| 12 | Duodecimal | 4364040 |
| 16 | Hexadecimal | c3a530 |
| 20 | Vigesimal | 402ea8 |
| 36 | Base36 | 7mtdc |
Cryptographic Hash Functions
| md5 | 7ca6c80637beb98ccc93f19597c96985 |
|---|---|
| sha1 | c26b45fab5d098a4b727700c98f0570cf38043c4 |
| sha256 | 855e1ccdf3475aa5705e6326d1717aa965906738ea3efcbf564772632b75d766 |
| sha512 | f8dd5fb1686999fbcd42ad1b2f3af51924cca3fa7abf010d0bd9ae43e9119e08bb4d2d9b8f2a54aa59b4fb0d70ca506f3c74bd1a154059d993f2bfbe44b0779f |
| ripemd-160 | 8f9dae6ec36163cd9cf52b82a2757c9919df2b14 |
12821808 as geometric shapes
Circle
Radius = n| Diameter | 25643616 |
|---|---|
| Circumference | 80561795.637078 |
| Area | 5.1647393789692E+14 |
Sphere
Radius = n| Volume | 8.8295062249577E+21 |
|---|---|
| Surface area | 2.0658957515877E+15 |
| Circumference | 80561795.637078 |
Square
Length = n| Perimeter | 51287232 |
|---|---|
| Area | 164398760388864 |
| Diagonal | 18132774.767744 |
Cube
Length = n| Surface area | 986392562333184 |
|---|---|
| Volume | 2.107889341144E+21 |
| Space diagonal | 22208022.900893 |
Equilateral Triangle
Length = n| Perimeter | 38465424 |
|---|---|
| Area | 71186751423714 |
| Altitude | 11104011.450447 |
Triangular Pyramid
Length = n| Surface area | 71186751423714 |
|---|---|
| Volume | 2.4841714118563E+20 |
| Height | 6044258.2559146 |