21494889 (number)
21494889 is an odd 8-digits composite number following 21494888 and preceding 21494890. In scientific notation, it is written as 2.1494889 × 10^7. The sum of its digits is 45. It has a total of 7 prime factors and 40 positive divisors. There are 13042944 positive integers (up to 21494889) that are relatively prime to 21494889.
Interesting facts
- 21494889 has 40 divisors, whose sum is 35065800
- The reverse of 21494889 is 98849412
- Previous prime number is 149
Basic properties
- Is Prime? no
- Number parity odd
- Number length 8
- Sum of Digits 45
- Digital Root 9
Name
| Name | twenty-one million four hundred ninety-four thousand eight hundred eighty-nine |
|---|
Notation
| Scientific notation | 2.1494889 × 10^7 |
|---|---|
| Engineering notation | 2.1494889 × 10^6 |
Prime Factorization of 21494889
Prime Factorization 3 × 3 × 3 × 3 × 13 × 149 × 137
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 796107 | Product of the distinct prime numbers |
The prime factorization of 21494889 is 3 × 3 × 3 × 3 × 13 × 149 × 137. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21494889)
Multiplication
n×y| n×2 | 42989778 |
|---|---|
| n×3 | 64484667 |
| n×4 | 85979556 |
| n×5 | 107474445 |
Division
n÷y| n÷2 | 10747444.5 |
|---|---|
| n÷3 | 7164963 |
| n÷3 | 5373722.25 |
| n÷5 | 4298977.8 |
Exponentiation
ny| n2 | 462030253122321 |
|---|---|
| n3 | 9.9312890055062E+21 |
| n4 | 2.1347195480028E+29 |
| n5 | 4.588555973045E+36 |
Nth Root
y√n| 2√n | 4636.2580816861 |
|---|---|
| 3√n | 278.04285263188 |
| 4√n | 68.0900732977 |
| 5√n | 29.272987099646 |
Divisors of 21494889
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 | -21494888 | 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 21494889 can be divided by 40 positive divisors. The sum of these divisors (counting 21494889) is 1, the average is 0.025.
Base conversion 21494889
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010001111111110001101001 |
| 3 | Ternary | 1111110001110000 |
| 4 | Quaternary | 1101333301221 |
| 5 | Quinary | 21000314024 |
| 6 | Senary | 2044413213 |
| 8 | Octal | 121776151 |
| 10 | Decimal | 21494889 |
| 12 | Duodecimal | 7247209 |
| 16 | Hexadecimal | 147fc69 |
| 20 | Vigesimal | 6e6h49 |
| 36 | Base36 | cspk9 |
Cryptographic Hash Functions
| md5 | 8028560aa9fba4d64b33db9eb0ec6f31 |
|---|---|
| sha1 | 36787622bd4a6e384edabefadf54de52c33f8a41 |
| sha256 | 8d2f670f52201c9d41275dc48e23420faa5a0fec9d21fd2f92cee0bd2f941e7f |
| sha512 | 4df0c05171f38f0bd08d5e20160a7e9c0b7335d492724f5577399a3c7d1a136ea9f66dbd5bee4b7179d215d834d85f3b32f52511ccefc8639c222bc69e358461 |
| ripemd-160 | 79348b44eb134b6b24fd0802d1d2310d03846bb7 |
21494889 as geometric shapes
Circle
Radius = n| Diameter | 42989778 |
|---|---|
| Circumference | 135056370.74426 |
| Area | 1.4515108489453E+15 |
Sphere
Radius = n| Volume | 4.1600086107167E+22 |
|---|---|
| Surface area | 5.8060433957813E+15 |
| Circumference | 135056370.74426 |
Square
Length = n| Perimeter | 85979556 |
|---|---|
| Area | 462030253122321 |
| Diagonal | 30398363.545504 |
Cube
Length = n| Surface area | 2772181518733926 |
|---|---|
| Volume | 9.9312890055062E+21 |
| Space diagonal | 37230239.851053 |
Equilateral Triangle
Length = n| Perimeter | 64484667 |
|---|---|
| Area | 2.0006496826044E+14 |
| Altitude | 18615119.925527 |
Triangular Pyramid
Length = n| Surface area | 2.0006496826044E+14 |
|---|---|
| Volume | 1.1704136336195E+21 |
| Height | 10132787.848501 |