21789904 (number)
21789904 is an even 8-digits composite number following 21789903 and preceding 21789905. In scientific notation, it is written as 2.1789904 × 10^7. The sum of its digits is 40. It has a total of 7 prime factors and 40 positive divisors. There are 10416000 positive integers (up to 21789904) that are relatively prime to 21789904.
Interesting facts
- 21789904 has 40 divisors, whose sum is 44104320
- The reverse of 21789904 is 40998712
- Previous prime number is 151
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 40
- Digital Root 4
Name
| Name | twenty-one million seven hundred eighty-nine thousand nine hundred four |
|---|
Notation
| Scientific notation | 2.1789904 × 10^7 |
|---|---|
| Engineering notation | 2.1789904 × 10^6 |
Prime Factorization of 21789904
Prime Factorization 2 × 2 × 2 × 2 × 29 × 151 × 311
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2723738 | Product of the distinct prime numbers |
The prime factorization of 21789904 is 2 × 2 × 2 × 2 × 29 × 151 × 311. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21789904)
Multiplication
n×y| n×2 | 43579808 |
|---|---|
| n×3 | 65369712 |
| n×4 | 87159616 |
| n×5 | 108949520 |
Division
n÷y| n÷2 | 10894952 |
|---|---|
| n÷3 | 7263301.3333333 |
| n÷3 | 5447476 |
| n÷5 | 4357980.8 |
Exponentiation
ny| n2 | 474799916329216 |
|---|---|
| n3 | 1.0345844596022E+22 |
| n4 | 2.2543496054623E+29 |
| n5 | 4.9122061485462E+36 |
Nth Root
y√n| 2√n | 4667.965723953 |
|---|---|
| 3√n | 279.30911299704 |
| 4√n | 68.32251257055 |
| 5√n | 29.352903268603 |
Divisors of 21789904
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 | -21789903 | 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 21789904 can be divided by 40 positive divisors. The sum of these divisors (counting 21789904) is 1, the average is 0.025.
Base conversion 21789904
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010011000111110011010000 |
| 3 | Ternary | 1112000001010111 |
| 4 | Quaternary | 1103013303100 |
| 5 | Quinary | 21034234104 |
| 6 | Senary | 2055011104 |
| 8 | Octal | 123076320 |
| 10 | Decimal | 21789904 |
| 12 | Duodecimal | 7369a94 |
| 16 | Hexadecimal | 14c7cd0 |
| 20 | Vigesimal | 6g3ef4 |
| 36 | Base36 | cz174 |
Cryptographic Hash Functions
| md5 | 4099496e85d82b60b3841789a787569b |
|---|---|
| sha1 | 8f8c3589a4083823c06c0c43abb0b931d3bee357 |
| sha256 | ff74ade548b1663faca8b26d1fb81001d8250772e97003525e16e8d6381650f0 |
| sha512 | a3b0c3b8eb078dea8ba25ec50d213a24ac8dc246315cff2f2b73bb89b2f98b914d5870ef3530a8c5f15bb141fd2c4bc4da589d7b42d4c4a3e0cc70e5d7288567 |
| ripemd-160 | c8585c640da37be93033ce85c5109f7b742ad911 |
21789904 as geometric shapes
Circle
Radius = n| Diameter | 43579808 |
|---|---|
| Circumference | 136910004.65765 |
| Area | 1.4916279290649E+15 |
Sphere
Radius = n| Volume | 4.3336572504058E+22 |
|---|---|
| Surface area | 5.9665117162597E+15 |
| Circumference | 136910004.65765 |
Square
Length = n| Perimeter | 87159616 |
|---|---|
| Area | 474799916329216 |
| Diagonal | 30815577.759608 |
Cube
Length = n| Surface area | 2848799497975296 |
|---|---|
| Volume | 1.0345844596022E+22 |
| Space diagonal | 37741220.820048 |
Equilateral Triangle
Length = n| Perimeter | 65369712 |
|---|---|
| Area | 2.0559439462791E+14 |
| Altitude | 18870610.410024 |
Triangular Pyramid
Length = n| Surface area | 2.0559439462791E+14 |
|---|---|
| Volume | 1.2192694784915E+21 |
| Height | 10271859.253203 |