82181520 (number)
82181520 is an even 8-digits composite number following 82181519 and preceding 82181521. In scientific notation, it is written as 8.2181520 × 10^7. The sum of its digits is 27. It has a total of 7 prime factors and 40 positive divisors. There are 21914496 positive integers (up to 82181520) that are relatively prime to 82181520.
Interesting facts
- 82181520 has 40 divisors, whose sum is 188718080
- The reverse of 82181520 is 02518128
- Previous prime number is 9
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 27
- Digital Root 9
Name
| Name | eighty-two million one hundred eighty-one thousand five hundred twenty |
|---|
Notation
| Scientific notation | 8.2181520 × 10^7 |
|---|---|
| Engineering notation | 8.2181520 × 10^6 |
Prime Factorization of 82181520
Prime Factorization 2 × 2 × 2 × 2 × 15 × 9 × 38047
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 10272690 | Product of the distinct prime numbers |
The prime factorization of 82181520 is 2 × 2 × 2 × 2 × 15 × 9 × 38047. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 82181520)
Multiplication
n×y| n×2 | 164363040 |
|---|---|
| n×3 | 246544560 |
| n×4 | 328726080 |
| n×5 | 410907600 |
Division
n÷y| n÷2 | 41090760 |
|---|---|
| n÷3 | 27393840 |
| n÷3 | 20545380 |
| n÷5 | 16436304 |
Exponentiation
ny| n2 | 6753802229510400 |
|---|---|
| n3 | 5.5503773300055E+23 |
| n4 | 4.561384455534E+31 |
| n5 | 3.7486150786015E+39 |
Nth Root
y√n| 2√n | 9065.4023628298 |
|---|---|
| 3√n | 434.76848560501 |
| 4√n | 95.212406559386 |
| 5√n | 38.278493208727 |
Divisors of 82181520
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 | -82181519 | 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 82181520 can be divided by 40 positive divisors. The sum of these divisors (counting 82181520) is 1, the average is 0.025.
Base conversion 82181520
| Base | System | Value |
|---|---|---|
| 2 | Binary | 100111001011111110110010000 |
| 3 | Ternary | 12201122020212000 |
| 4 | Quaternary | 10321133312100 |
| 5 | Quinary | 132014302040 |
| 6 | Senary | 12053234000 |
| 8 | Octal | 471376620 |
| 10 | Decimal | 82181520 |
| 12 | Duodecimal | 23632900 |
| 16 | Hexadecimal | 4e5fd90 |
| 20 | Vigesimal | 15dcdg0 |
| 36 | Base36 | 1cxfo0 |
Cryptographic Hash Functions
| md5 | 9d0847a3b1d80581057d85b898dc30b2 |
|---|---|
| sha1 | fc08285aea386d3402b67bf0ed123dcc0c4b7aac |
| sha256 | 619dbdd4320033d0be1ead6eb2c37e367f9b6d37babb067c9032344184ac5b83 |
| sha512 | 90d492ae1d523df1315c107a17ac34983ff62c966559f33666fc3748af01342973fa4d2edd6ac9de0b8bb370e4008a1ad35000e837d99c8b979030c0af1a46c7 |
| ripemd-160 | ed4901b0f4b6c8dd933ba4affdb29a6d8138ac4c |
82181520 as geometric shapes
Circle
Radius = n| Diameter | 164363040 |
|---|---|
| Circumference | 516361718.98569 |
| Area | 2.1217695468028E+16 |
Sphere
Radius = n| Volume | 2.3249366192796E+24 |
|---|---|
| Surface area | 8.4870781872113E+16 |
| Circumference | 516361718.98569 |
Square
Length = n| Perimeter | 328726080 |
|---|---|
| Area | 6753802229510400 |
| Diagonal | 116222220.16044 |
Cube
Length = n| Surface area | 40522813377062400 |
|---|---|
| Volume | 5.5503773300055E+23 |
| Space diagonal | 142342568.08324 |
Equilateral Triangle
Length = n| Perimeter | 246544560 |
|---|---|
| Area | 2.924482151446E+15 |
| Altitude | 71171284.041619 |
Triangular Pyramid
Length = n| Surface area | 2.924482151446E+15 |
|---|---|
| Volume | 6.5411824136517E+22 |
| Height | 38740740.053479 |