21381246 (number)
21381246 is an even 8-digits composite number following 21381245 and preceding 21381247. In scientific notation, it is written as 2.1381246 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 40 positive divisors. There are 7003152 positive integers (up to 21381246) that are relatively prime to 21381246.
Interesting facts
- 21381246 has 40 divisors, whose sum is 48743640
- The reverse of 21381246 is 64218312
- Previous prime number is 59
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 27
- Digital Root 9
Name
| Name | twenty-one million three hundred eighty-one thousand two hundred forty-six |
|---|
Notation
| Scientific notation | 2.1381246 × 10^7 |
|---|---|
| Engineering notation | 2.1381246 × 10^6 |
Prime Factorization of 21381246
Prime Factorization 2 × 9 × 3 × 3 × 59 × 2237
Composite number| ω | Distinct Factors | 5 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 6 | Total number of prime factors |
| rad | Radical | 7127082 | Product of the distinct prime numbers |
The prime factorization of 21381246 is 2 × 9 × 3 × 3 × 59 × 2237. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21381246)
Multiplication
n×y| n×2 | 42762492 |
|---|---|
| n×3 | 64143738 |
| n×4 | 85524984 |
| n×5 | 106906230 |
Division
n÷y| n÷2 | 10690623 |
|---|---|
| n÷3 | 7127082 |
| n÷3 | 5345311.5 |
| n÷5 | 4276249.2 |
Exponentiation
ny| n2 | 457157680512516 |
|---|---|
| n3 | 9.7746008278275E+21 |
| n4 | 2.0899314485158E+29 |
| n5 | 4.4685338423853E+36 |
Nth Root
y√n| 2√n | 4623.9859428852 |
|---|---|
| 3√n | 277.55198441741 |
| 4√n | 67.999896638783 |
| 5√n | 29.241968305502 |
Divisors of 21381246
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 | -21381245 | 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 21381246 can be divided by 40 positive divisors. The sum of these divisors (counting 21381246) is 1, the average is 0.025.
Base conversion 21381246
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010001100100000001111110 |
| 3 | Ternary | 1111020021120000 |
| 4 | Quaternary | 1101210001332 |
| 5 | Quinary | 20433144441 |
| 6 | Senary | 2042135130 |
| 8 | Octal | 121440176 |
| 10 | Decimal | 21381246 |
| 12 | Duodecimal | 71b14a6 |
| 16 | Hexadecimal | 146407e |
| 20 | Vigesimal | 6dcd26 |
| 36 | Base36 | cq9vi |
Cryptographic Hash Functions
| md5 | 7ff4006cb1b32567b313ffcfa50df3ac |
|---|---|
| sha1 | f0ca4258c51dfaf38697d725cd403e58f548b5d9 |
| sha256 | c95b8a8a7ba831e81dc10d1ed81cfe50fcd43a91efe15bc4013475300e7efdd7 |
| sha512 | 097831e21002b3ec5d7a6ab97f9df878a23b8f96aa0fcbfcec798d0e343833544138a02e3499d10e06ac8e84b4a501c7c513e28f718013449be0efae34af1e83 |
| ripemd-160 | b950dde55e86623e5e433fb8c7d5e4c3e1d56aa4 |
21381246 as geometric shapes
Circle
Radius = n| Diameter | 42762492 |
|---|---|
| Circumference | 134342330.71639 |
| Area | 1.4362032106303E+15 |
Sphere
Radius = n| Volume | 4.0943752203301E+22 |
|---|---|
| Surface area | 5.7448128425211E+15 |
| Circumference | 134342330.71639 |
Square
Length = n| Perimeter | 85524984 |
|---|---|
| Area | 457157680512516 |
| Diagonal | 30237648.073635 |
Cube
Length = n| Surface area | 2742946083075096 |
|---|---|
| Volume | 9.7746008278275E+21 |
| Space diagonal | 37033404.401129 |
Equilateral Triangle
Length = n| Perimeter | 64143738 |
|---|---|
| Area | 1.979550824295E+14 |
| Altitude | 18516702.200564 |
Triangular Pyramid
Length = n| Surface area | 1.979550824295E+14 |
|---|---|
| Volume | 1.1519477547914E+21 |
| Height | 10079216.024545 |