20018908 (number)
20018908 is an even 8-digits composite number following 20018907 and preceding 20018909. In scientific notation, it is written as 2.0018908 × 10^7. The sum of its digits is 28. It has a total of 6 prime factors and 48 positive divisors. There are 7729344 positive integers (up to 20018908) that are relatively prime to 20018908.
Interesting facts
- 20018908 has 48 divisors, whose sum is 44154880
- The reverse of 20018908 is 80981002
- Previous prime number is 43
Basic properties
- Is Prime? no
- Number parity even
- Number length 8
- Sum of Digits 28
- Digital Root 1
Name
Name | twenty million eighteen thousand nine hundred eight |
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Notation
Scientific notation | 2.0018908 × 10^7 |
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Engineering notation | 2.0018908 × 10^6 |
Prime Factorization of 20018908
Prime Factorization 2 × 2 × 7 × 13 × 43 × 1279
Composite numberω | Distinct Factors | 5 | Total number of distinct prime factors |
---|---|---|---|
Ω | Total Factors | 6 | Total number of prime factors |
rad | Radical | 10009454 | Product of the distinct prime numbers |
The prime factorization of 20018908 is 2 × 2 × 7 × 13 × 43 × 1279. Since it has a total of 6 prime factors.
Most popular turbo-numbers
Basic calculations (n = 20018908)
Multiplication
n×yn×2 | 40037816 |
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n×3 | 60056724 |
n×4 | 80075632 |
n×5 | 100094540 |
Division
n÷yn÷2 | 10009454 |
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n÷3 | 6672969.3333333 |
n÷3 | 5004727 |
n÷5 | 4003781.6 |
Exponentiation
nyn2 | 400756677512464 |
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n3 | 8.0227110575077E+21 |
n4 | 1.6060591457083E+29 |
n5 | 3.2151550280493E+36 |
Nth Root
y√n2√n | 4474.2494342627 |
---|---|
3√n | 271.52727506418 |
4√n | 66.889830574331 |
5√n | 28.859451770145 |
Divisors of 20018908
48 divisors
τ | Total Divisors | 48 | Total number of the positive divisors of n |
---|---|---|---|
σ | Sum of Divisors | 1 | Sum of all the positive divisors of n |
s | Aliquot Sum | -20018907 | Sum of the proper positive divisors of n |
A | Arithmetic Mean | 0.020833333333333 | 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 | 48 | Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 20018908 can be divided by 48 positive divisors. The sum of these divisors (counting 20018908) is 1, the average is 0.020833333333333.
Base conversion 20018908
Base | System | Value |
---|---|---|
2 | Binary | 1001100010111011011011100 |
3 | Ternary | 1101200001210001 |
4 | Quaternary | 1030113123130 |
5 | Quinary | 20111101113 |
6 | Senary | 1553024044 |
8 | Octal | 114273334 |
10 | Decimal | 20018908 |
12 | Duodecimal | 6855024 |
16 | Hexadecimal | 13176dc |
20 | Vigesimal | 652758 |
36 | Base36 | bx2os |
Cryptographic Hash Functions
md5 | ec782118fe081f975f1ef4536dbcfc7e |
---|---|
sha1 | 67cff43415446ddccafe0d1eb9a964d7fb5315a4 |
sha256 | 01b8329a97cffbe0eccdbd99381bc52974ed4ccf348a9984f794d8a5867b8b98 |
sha512 | 16f033b682ec094edd7ae7ddd2d93434d5d8f9334cc07f0e7e70dbf0a9e74770c01b8291812cce51f4085ec87284b8425846c843f779207fcb4f27e544fd732e |
ripemd-160 | 18797d1402f3b10af7babe9eb131dcf1ec7cf8bb |
20018908 as geometric shapes
Circle
Radius = nDiameter | 40037816 |
---|---|
Circumference | 125782508.61138 |
Area | 1.2590142339502E+15 |
Sphere
Radius = nVolume | 3.360545349352E+22 |
---|---|
Surface area | 5.0360569358008E+15 |
Circumference | 125782508.61138 |
Square
Length = nPerimeter | 80075632 |
---|---|
Area | 400756677512464 |
Diagonal | 28311011.197499 |
Cube
Length = nSurface area | 2404540065074784 |
---|---|
Volume | 8.0227110575077E+21 |
Space diagonal | 34673765.768047 |
Equilateral Triangle
Length = nPerimeter | 60056724 |
---|---|
Area | 1.7353273173102E+14 |
Altitude | 17336882.884024 |
Triangular Pyramid
Length = nSurface area | 1.7353273173102E+14 |
---|---|
Volume | 9.4548556537733E+20 |
Height | 9437003.7324998 |