21556816 (number)
21556816 is an even 8-digits composite number following 21556815 and preceding 21556817. In scientific notation, it is written as 2.1556816 × 10^7. The sum of its digits is 34. It has a total of 7 prime factors and 40 positive divisors. There are 9891840 positive integers (up to 21556816) that are relatively prime to 21556816.
Interesting facts
- 21556816 has 40 divisors, whose sum is 45325224
- The reverse of 21556816 is 61865512
- Previous prime number is 1933
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 34
- Digital Root 7
Name
| Name | twenty-one million five hundred fifty-six thousand eight hundred sixteen |
|---|
Notation
| Scientific notation | 2.1556816 × 10^7 |
|---|---|
| Engineering notation | 2.1556816 × 10^6 |
Prime Factorization of 21556816
Prime Factorization 2 × 2 × 2 × 2 × 17 × 1933 × 41
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2694602 | Product of the distinct prime numbers |
The prime factorization of 21556816 is 2 × 2 × 2 × 2 × 17 × 1933 × 41. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21556816)
Multiplication
n×y| n×2 | 43113632 |
|---|---|
| n×3 | 64670448 |
| n×4 | 86227264 |
| n×5 | 107784080 |
Division
n÷y| n÷2 | 10778408 |
|---|---|
| n÷3 | 7185605.3333333 |
| n÷3 | 5389204 |
| n÷5 | 4311363.2 |
Exponentiation
ny| n2 | 464696316057856 |
|---|---|
| n3 | 1.0017372981137E+22 |
| n4 | 2.1594266615774E+29 |
| n5 | 4.6550363209119E+36 |
Nth Root
y√n| 2√n | 4642.9318323663 |
|---|---|
| 3√n | 278.30961140611 |
| 4√n | 68.13906245588 |
| 5√n | 29.289834851791 |
Divisors of 21556816
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 | -21556815 | 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 21556816 can be divided by 40 positive divisors. The sum of these divisors (counting 21556816) is 1, the average is 0.025.
Base conversion 21556816
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010010001110111001010000 |
| 3 | Ternary | 1111120012101121 |
| 4 | Quaternary | 1102032321100 |
| 5 | Quinary | 21004304231 |
| 6 | Senary | 2050012024 |
| 8 | Octal | 122167120 |
| 10 | Decimal | 21556816 |
| 12 | Duodecimal | 7277014 |
| 16 | Hexadecimal | 148ee50 |
| 20 | Vigesimal | 6eec0g |
| 36 | Base36 | cu1cg |
Cryptographic Hash Functions
| md5 | be4a92790434b920966d07379c3354c4 |
|---|---|
| sha1 | a8fe9e9100a317e46bac5ed2656bd111e323d7af |
| sha256 | f7fb447b34ca02825e4c516badf4d0f3b18277a4eb675a65e6665507a5fd6ff2 |
| sha512 | 2aac056992c75fc7a1cd75f22e98551a02ccce7169cbd25ecde58c8197a08f2d5c66737fdb2dfc02b9cc5a4010c94045ecc7eea77e28da014e99b5658fb84302 |
| ripemd-160 | a30f274611f53a7bdd229c9b389ab61d2f3ec096 |
21556816 as geometric shapes
Circle
Radius = n| Diameter | 43113632 |
|---|---|
| Circumference | 135445469.56077 |
| Area | 1.4598865326776E+15 |
Sphere
Radius = n| Volume | 4.1960673821079E+22 |
|---|---|
| Surface area | 5.8395461307104E+15 |
| Circumference | 135445469.56077 |
Square
Length = n| Perimeter | 86227264 |
|---|---|
| Area | 464696316057856 |
| Diagonal | 30485941.548781 |
Cube
Length = n| Surface area | 2788177896347136 |
|---|---|
| Volume | 1.0017372981137E+22 |
| Space diagonal | 37337500.561414 |
Equilateral Triangle
Length = n| Perimeter | 64670448 |
|---|---|
| Area | 2.0121940737557E+14 |
| Altitude | 18668750.280707 |
Triangular Pyramid
Length = n| Surface area | 2.0121940737557E+14 |
|---|---|
| Volume | 1.1805587274395E+21 |
| Height | 10161980.51626 |