21031740 (number)
21031740 is an even 8-digits composite number following 21031739 and preceding 21031741. In scientific notation, it is written as 2.1031740 × 10^7. The sum of its digits is 18. It has a total of 7 prime factors and 72 positive divisors. There are 5575680 positive integers (up to 21031740) that are relatively prime to 21031740.
Interesting facts
- 21031740 has 72 divisors, whose sum is 64170288
- The reverse of 21031740 is 04713012
- Previous prime number is 353
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 18
- Digital Root 9
Name
| Name | twenty-one million thirty-one thousand seven hundred forty |
|---|
Notation
| Scientific notation | 2.1031740 × 10^7 |
|---|---|
| Engineering notation | 2.1031740 × 10^6 |
Prime Factorization of 21031740
Prime Factorization 2 × 2 × 5 × 3 × 3 × 353 × 331
Composite number| ω | Distinct Factors | 5 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 3505290 | Product of the distinct prime numbers |
The prime factorization of 21031740 is 2 × 2 × 5 × 3 × 3 × 353 × 331. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 21031740)
Multiplication
n×y| n×2 | 42063480 |
|---|---|
| n×3 | 63095220 |
| n×4 | 84126960 |
| n×5 | 105158700 |
Division
n÷y| n÷2 | 10515870 |
|---|---|
| n÷3 | 7010580 |
| n÷3 | 5257935 |
| n÷5 | 4206348 |
Exponentiation
ny| n2 | 442334087427600 |
|---|---|
| n3 | 9.3030555199146E+21 |
| n4 | 1.9565944490041E+29 |
| n5 | 4.1150585736897E+36 |
Nth Root
y√n| 2√n | 4586.037505298 |
|---|---|
| 3√n | 276.03134489628 |
| 4√n | 67.72028872722 |
| 5√n | 29.145736944798 |
Divisors of 21031740
72 divisors
| τ | Total Divisors | 72 | Total number of the positive divisors of n |
|---|---|---|---|
| σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
| s | Aliquot Sum | -21031739 | Sum of the proper positive divisors of n |
| A | Arithmetic Mean | 0.013888888888889 | 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 | 72 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 21031740 can be divided by 72 positive divisors. The sum of these divisors (counting 21031740) is 1, the average is 0.013888888888889.
Base conversion 21031740
| Base | System | Value |
|---|---|---|
| 2 | Binary | 1010000001110101100111100 |
| 3 | Ternary | 1110120112010100 |
| 4 | Quaternary | 1100032230330 |
| 5 | Quinary | 20341003430 |
| 6 | Senary | 2030441100 |
| 8 | Octal | 120165474 |
| 10 | Decimal | 21031740 |
| 12 | Duodecimal | 7063190 |
| 16 | Hexadecimal | 140eb3c |
| 20 | Vigesimal | 6b8j70 |
| 36 | Base36 | cis70 |
Cryptographic Hash Functions
| md5 | 1309fc84f8a112bc58c0a9d4b359704e |
|---|---|
| sha1 | feb6fa58af695538b29e9f837d18aad009d01807 |
| sha256 | a40e7955f04d137a3b380606a3a75807c137cf5191057bd943d55fe3f3651ce3 |
| sha512 | 744efc1843dd3321de24092048e389a6ccae96456ee9e68f08ff630a3a14de526f54d9b80b8bf84a60fa080c24a6f22cb61312954d827a4d3af9359615f4ec61 |
| ripemd-160 | f87dcb29808631258f80827289f2bcd5fe17cdf2 |
21031740 as geometric shapes
Circle
Radius = n| Diameter | 42063480 |
|---|---|
| Circumference | 132146319.75242 |
| Area | 1.3896335194949E+15 |
Sphere
Radius = n| Volume | 3.8968547836402E+22 |
|---|---|
| Surface area | 5.5585340779796E+15 |
| Circumference | 132146319.75242 |
Square
Length = n| Perimeter | 84126960 |
|---|---|
| Area | 442334087427600 |
| Diagonal | 29743371.948305 |
Cube
Length = n| Surface area | 2654004524565600 |
|---|---|
| Volume | 9.3030555199146E+21 |
| Space diagonal | 36428042.251579 |
Equilateral Triangle
Length = n| Perimeter | 63095220 |
|---|---|
| Area | 1.9153627833605E+14 |
| Altitude | 18214021.125789 |
Triangular Pyramid
Length = n| Surface area | 1.9153627833605E+14 |
|---|---|
| Volume | 1.0963756073144E+21 |
| Height | 9914457.3161016 |