21995145 (number)
21995145 is an odd 8-digits composite number following 21995144 and preceding 21995146. In scientific notation, it is written as 2.1995145 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 40 positive divisors. There are 11430720 positive integers (up to 21995145) that are relatively prime to 21995145.
Interesting facts
- 21995145 has 40 divisors, whose sum is 35947648
- The reverse of 21995145 is 54159912
- Previous prime number is 43
Basic properties
- Is Prime? no
- Number parity odd
- Number length 8
- Sum of Digits 36
- Digital Root 9
Name
| Name | twenty-one million nine hundred ninety-five thousand one hundred forty-five |
|---|
Notation
| Scientific notation | 2.1995145 × 10^7 |
|---|---|
| Engineering notation | 2.1995145 × 10^6 |
Prime Factorization of 21995145
Prime Factorization 3 × 9 × 3 × 15 × 43 × 421
Composite number| ω | Distinct Factors | 5 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 6 | Total number of prime factors |
| rad | Radical | 7331715 | Product of the distinct prime numbers |
The prime factorization of 21995145 is 3 × 9 × 3 × 15 × 43 × 421. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21995145)
Multiplication
n×y| n×2 | 43990290 |
|---|---|
| n×3 | 65985435 |
| n×4 | 87980580 |
| n×5 | 109975725 |
Division
n÷y| n÷2 | 10997572.5 |
|---|---|
| n÷3 | 7331715 |
| n÷3 | 5498786.25 |
| n÷5 | 4399029 |
Exponentiation
ny| n2 | 483786403571025 |
|---|---|
| n3 | 1.0640952095573E+22 |
| n4 | 2.3404928428019E+29 |
| n5 | 5.1479479448889E+36 |
Nth Root
y√n| 2√n | 4689.8981865281 |
|---|---|
| 3√n | 280.18331957799 |
| 4√n | 68.48283132675 |
| 5√n | 29.407991614511 |
Divisors of 21995145
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 | -21995144 | 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 21995145 can be divided by 40 positive divisors. The sum of these divisors (counting 21995145) is 1, the average is 0.025.
Base conversion 21995145
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010011111001111010001001 |
| 3 | Ternary | 1112101110200000 |
| 4 | Quaternary | 1103321322021 |
| 5 | Quinary | 21112321040 |
| 6 | Senary | 2103233213 |
| 8 | Octal | 123717211 |
| 10 | Decimal | 21995145 |
| 12 | Duodecimal | 7448809 |
| 16 | Hexadecimal | 14f9e89 |
| 20 | Vigesimal | 6h97h5 |
| 36 | Base36 | d3fk9 |
Cryptographic Hash Functions
| md5 | e6b9b9fa79ecdfc1508476a638d6f235 |
|---|---|
| sha1 | 02b42b7e850f08ca503efaf54377fe11dbf1d4be |
| sha256 | e12a6f00f6ab3238d3c2f920ba6c1452eebea0f48ccfc2129eb42c6396e17dbb |
| sha512 | a23942511bd608cf272ca0838288476ceab35f7d155e94b0d1303a84271f447e2fcf40baa6f78d5b42ef763023db2f50563201821410f783415661c6adfcc9b9 |
| ripemd-160 | c07179a0cea8828afb6216e8e015244a52ca56d5 |
21995145 as geometric shapes
Circle
Radius = n| Diameter | 43990290 |
|---|---|
| Circumference | 138199571.89328 |
| Area | 1.5198598113654E+15 |
Sphere
Radius = n| Volume | 4.4572715907538E+22 |
|---|---|
| Surface area | 6.0794392454614E+15 |
| Circumference | 138199571.89328 |
Square
Length = n| Perimeter | 87980580 |
|---|---|
| Area | 483786403571025 |
| Diagonal | 31105832.365363 |
Cube
Length = n| Surface area | 2902718421426150 |
|---|---|
| Volume | 1.0640952095573E+22 |
| Space diagonal | 38096708.659845 |
Equilateral Triangle
Length = n| Perimeter | 65985435 |
|---|---|
| Area | 2.0948565774901E+14 |
| Altitude | 19048354.329922 |
Triangular Pyramid
Length = n| Surface area | 2.0948565774901E+14 |
|---|---|
| Volume | 1.2540482308435E+21 |
| Height | 10368610.788454 |