8181808 (number)
8181808 is an even 7-digits composite number following 8181807 and preceding 8181809. In scientific notation, it is written as 8.181808 × 10^6. The sum of its digits is 34. It has a total of 7 prime factors and 40 positive divisors. There are 3936000 positive integers (up to 8181808) that are relatively prime to 8181808.
Interesting facts
- 8181808 has 40 divisors, whose sum is 16467696
- The reverse of 8181808 is 8081818
- Previous prime number is 83
Basic properties
- Is Prime? no
- Number parity even
- Number length 7
- Sum of Digits 34
- Digital Root 7
Name
| Name | eight million one hundred eighty-one thousand eight hundred eight |
|---|
Notation
| Scientific notation | 8.181808 × 10^6 |
|---|---|
| Engineering notation | 8.181808 × 10^6 |
Prime Factorization of 8181808
Prime Factorization 2 × 2 × 2 × 2 × 61 × 83 × 101
Composite number| ω | Distinct Factors | 4 | Total number of distinct prime factors |
|---|---|---|---|
| Ω | Total Factors | 7 | Total number of prime factors |
| rad | Radical | 1022726 | Product of the distinct prime numbers |
The prime factorization of 8181808 is 2 × 2 × 2 × 2 × 61 × 83 × 101. Since it has a total of 7 prime factors.
Most popular turbo-numbers
Basic calculations (n = 8181808)
Multiplication
n×y| n×2 | 16363616 |
|---|---|
| n×3 | 24545424 |
| n×4 | 32727232 |
| n×5 | 40909040 |
Division
n÷y| n÷2 | 4090904 |
|---|---|
| n÷3 | 2727269.3333333 |
| n÷3 | 2045452 |
| n÷5 | 1636361.6 |
Exponentiation
ny| n2 | 66941982148864 |
|---|---|
| n3 | 5.4770644508143E+20 |
| n4 | 4.4812289740188E+27 |
| n5 | 3.6664555069459E+34 |
Nth Root
y√n| 2√n | 2860.3859879394 |
|---|---|
| 3√n | 201.50373227739 |
| 4√n | 53.482576489352 |
| 5√n | 24.130696463943 |
Divisors of 8181808
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 | -8181807 | 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 8181808 can be divided by 40 positive divisors. The sum of these divisors (counting 8181808) is 1, the average is 0.025.
Base conversion 8181808
| Base | System | Value |
|---|---|---|
| 2 | Binary | 11111001101100000110000 |
| 3 | Ternary | 120101200022221 |
| 4 | Quaternary | 133031200300 |
| 5 | Quinary | 4043304213 |
| 6 | Senary | 451210424 |
| 8 | Octal | 37154060 |
| 10 | Decimal | 8181808 |
| 12 | Duodecimal | 28a6a14 |
| 16 | Hexadecimal | 7cd830 |
| 20 | Vigesimal | 2b2ea8 |
| 36 | Base36 | 4vd4g |
Cryptographic Hash Functions
| md5 | 3f3856599b70b85c96074b63a2eb9aae |
|---|---|
| sha1 | b4148c97d9b013450bfd4b7d81c49ea429172b41 |
| sha256 | dd9aae124a4f84c6c3c932f4fbafcaad6617ae6b300370a8c131a84704ea5902 |
| sha512 | d59710863476dce2b53630bd244f91b052ed55be63e6925a7a840a76304f3467e701c474ae7f0a5735c86083ae33d93c9c849cedd880e887a810063347e97274 |
| ripemd-160 | 14f2b87357b0ddbc402b12a89d6527ea4c626cf9 |
8181808 as geometric shapes
Circle
Radius = n| Diameter | 16363616 |
|---|---|
| Circumference | 51407815.811764 |
| Area | 2.1030443933561E+14 |
Sphere
Radius = n| Volume | 2.2942273922555E+21 |
|---|---|
| Surface area | 8.4121775734244E+14 |
| Circumference | 51407815.811764 |
Square
Length = n| Perimeter | 32727232 |
|---|---|
| Area | 66941982148864 |
| Diagonal | 11570823.838333 |
Cube
Length = n| Surface area | 401651892893184 |
|---|---|
| Volume | 5.4770644508143E+20 |
| Space diagonal | 14171307.153773 |
Equilateral Triangle
Length = n| Perimeter | 24545424 |
|---|---|
| Area | 28986728560300 |
| Altitude | 7085653.5768867 |
Triangular Pyramid
Length = n| Surface area | 28986728560300 |
|---|---|
| Volume | 6.4547823569443E+19 |
| Height | 3856941.2794442 |