21492720 (number)
21492720 is an even 8-digits composite number following 21492719 and preceding 21492721. In scientific notation, it is written as 2.1492720 × 10^7. The sum of its digits is 27. It has a total of 7 prime factors and 40 positive divisors. There are 5731200 positive integers (up to 21492720) that are relatively prime to 21492720.
Interesting facts
- 21492720 has 40 divisors, whose sum is 59226368
- The reverse of 21492720 is 02729412
- Previous prime number is 15
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 27
- Digital Root 9
Name
| Name | twenty-one million four hundred ninety-two thousand seven hundred twenty |
|---|
Notation
| Scientific notation | 2.1492720 × 10^7 |
|---|---|
| Engineering notation | 2.1492720 × 10^6 |
Prime Factorization of 21492720
Prime Factorization 2 × 2 × 2 × 2 × 3 × 15 × 29851
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 2686590 | Product of the distinct prime numbers |
The prime factorization of 21492720 is 2 × 2 × 2 × 2 × 3 × 15 × 29851. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21492720)
Multiplication
n×y| n×2 | 42985440 |
|---|---|
| n×3 | 64478160 |
| n×4 | 85970880 |
| n×5 | 107463600 |
Division
n÷y| n÷2 | 10746360 |
|---|---|
| n÷3 | 7164240 |
| n÷3 | 5373180 |
| n÷5 | 4298544 |
Exponentiation
ny| n2 | 461937012998400 |
|---|---|
| n3 | 9.928282878011E+21 |
| n4 | 2.1338580397788E+29 |
| n5 | 4.5862413368715E+36 |
Nth Root
y√n| 2√n | 4636.0241586946 |
|---|---|
| 3√n | 278.03350009489 |
| 4√n | 68.088355529375 |
| 5√n | 29.272396301788 |
Divisors of 21492720
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 | -21492719 | 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 21492720 can be divided by 40 positive divisors. The sum of these divisors (counting 21492720) is 1, the average is 0.025.
Base conversion 21492720
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010001111111001111110000 |
| 3 | Ternary | 1111102221110200 |
| 4 | Quaternary | 1101333033300 |
| 5 | Quinary | 21000231340 |
| 6 | Senary | 2044355200 |
| 8 | Octal | 121771760 |
| 10 | Decimal | 21492720 |
| 12 | Duodecimal | 7245b00 |
| 16 | Hexadecimal | 147f3f0 |
| 20 | Vigesimal | 6e6bg0 |
| 36 | Base36 | csnw0 |
Cryptographic Hash Functions
| md5 | bec943ffd367d3698ef0dd9a905b4fa2 |
|---|---|
| sha1 | 3bfa3cf7420c8f53bde592ee00ab8caea9c82e2a |
| sha256 | 39146b24072a4a6d0e80db6ec3c7f87cb3481629bf551da0bbbd57fd562fab8f |
| sha512 | fb7d36c41aec212604079bfa458fca9cb1c89502beaa0b7bd0701a0ad61baa772d4f676b167e65a523e6797950c05568d13fee8f443e3f7eaace571b86993abf |
| ripemd-160 | e188925e06ee4766c7c5137816a9ed64963ed052 |
21492720 as geometric shapes
Circle
Radius = n| Diameter | 42985440 |
|---|---|
| Circumference | 135042742.51532 |
| Area | 1.451217926457E+15 |
Sphere
Radius = n| Volume | 4.1587494069761E+22 |
|---|---|
| Surface area | 5.8048717058279E+15 |
| Circumference | 135042742.51532 |
Square
Length = n| Perimeter | 85970880 |
|---|---|
| Area | 461937012998400 |
| Diagonal | 30395296.116287 |
Cube
Length = n| Surface area | 2771622077990400 |
|---|---|
| Volume | 9.928282878011E+21 |
| Space diagonal | 37226483.032852 |
Equilateral Triangle
Length = n| Perimeter | 64478160 |
|---|---|
| Area | 2.0002459410246E+14 |
| Altitude | 18613241.516426 |
Triangular Pyramid
Length = n| Surface area | 2.0002459410246E+14 |
|---|---|
| Volume | 1.1700593580966E+21 |
| Height | 10131765.372096 |