21121520 (number)
21121520 is an even 8-digits composite number following 21121519 and preceding 21121521. In scientific notation, it is written as 2.1121520 × 10^7. The sum of its digits is 14. It has a total of 7 prime factors and 40 positive divisors. There are 7241472 positive integers (up to 21121520) that are relatively prime to 21121520.
Interesting facts
- 21121520 has 40 divisors, whose sum is 56124384
- The reverse of 21121520 is 02512112
- Previous prime number is 5
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 14
- Digital Root 5
Name
| Name | twenty-one million one hundred twenty-one thousand five hundred twenty |
|---|
Notation
| Scientific notation | 2.1121520 × 10^7 |
|---|---|
| Engineering notation | 2.1121520 × 10^6 |
Prime Factorization of 21121520
Prime Factorization 2 × 2 × 2 × 2 × 7 × 5 × 37717
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2640190 | Product of the distinct prime numbers |
The prime factorization of 21121520 is 2 × 2 × 2 × 2 × 7 × 5 × 37717. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21121520)
Multiplication
n×y| n×2 | 42243040 |
|---|---|
| n×3 | 63364560 |
| n×4 | 84486080 |
| n×5 | 105607600 |
Division
n÷y| n÷2 | 10560760 |
|---|---|
| n÷3 | 7040506.6666667 |
| n÷3 | 5280380 |
| n÷5 | 4224304 |
Exponentiation
ny| n2 | 446118607110400 |
|---|---|
| n3 | 9.4227030824545E+21 |
| n4 | 1.9902181161012E+29 |
| n5 | 4.2036431743595E+36 |
Nth Root
y√n| 2√n | 4595.8154880282 |
|---|---|
| 3√n | 276.42356025558 |
| 4√n | 67.792444180957 |
| 5√n | 29.170577948085 |
Divisors of 21121520
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 | -21121519 | 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 21121520 can be divided by 40 positive divisors. The sum of these divisors (counting 21121520) is 1, the average is 0.025.
Base conversion 21121520
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010000100100100111110000 |
| 3 | Ternary | 1110202002021112 |
| 4 | Quaternary | 1100210213300 |
| 5 | Quinary | 20401342040 |
| 6 | Senary | 2032412452 |
| 8 | Octal | 120444760 |
| 10 | Decimal | 21121520 |
| 12 | Duodecimal | 70a7128 |
| 16 | Hexadecimal | 14249f0 |
| 20 | Vigesimal | 6c03g0 |
| 36 | Base36 | ckpgw |
Cryptographic Hash Functions
| md5 | 97da8d71bb6dee05cc7b113a84441379 |
|---|---|
| sha1 | 8d700c43f0457ebd2cbaea50e498dc4c6eb5421f |
| sha256 | 711420ae94b3f152cc2722ce6f1acc13d4100f32bf4c65a64705e72a9771d922 |
| sha512 | 442c9121ca8aed5f7ad417e11ab75801395300a46d44a9fd49cec07b4a5864fdb548acd1491821e92611703b5c2d897743870a7f06fe8165facf70afcac3d307 |
| ripemd-160 | 0cb2e5053cf8ea9e84dc60977c8f943095e331b5 |
21121520 as geometric shapes
Circle
Radius = n| Diameter | 42243040 |
|---|---|
| Circumference | 132710424.1293 |
| Area | 1.4015229387277E+15 |
Sphere
Radius = n| Volume | 3.9469726374396E+22 |
|---|---|
| Surface area | 5.606091754911E+15 |
| Circumference | 132710424.1293 |
Square
Length = n| Perimeter | 84486080 |
|---|---|
| Area | 446118607110400 |
| Diagonal | 29870340.041935 |
Cube
Length = n| Surface area | 2676711642662400 |
|---|---|
| Volume | 9.4227030824545E+21 |
| Space diagonal | 36583545.773082 |
Equilateral Triangle
Length = n| Perimeter | 63364560 |
|---|---|
| Area | 1.9317502342927E+14 |
| Altitude | 18291772.886541 |
Triangular Pyramid
Length = n| Surface area | 1.9317502342927E+14 |
|---|---|
| Volume | 1.1104762077852E+21 |
| Height | 9956780.0139782 |