20308 (number)
20,308 (twenty thousand three hundred eight) is an even fivedigits composite number following 20307 and preceding 20309. In scientific notation, it is written as 2.0308 × 10^{4}. The sum of its digits is 13. It has a total of 3 prime factors and 6 positive divisors. There are 10,152 positive integers (up to 20308) that are relatively prime to 20308.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 5
 Sum of Digits 13
 Digital Root 4
Name
Short name  20 thousand 308 

Full name  twenty thousand three hundred eight 
Notation
Scientific notation  2.0308 × 10^{4} 

Engineering notation  20.308 × 10^{3} 
Prime Factorization of 20308
Prime Factorization 2^{2} × 5077
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  3  Total number of prime factors 
rad(n)  Radical  10154  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  0  Returns:

Λ(n)  Mangoldt function  0  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 20,308 is 2^{2} × 5077. Since it has a total of 3 prime factors, 20,308 is a composite number.
Divisors of 20308
6 divisors
τ(n)  Total Divisors  6  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  35546  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  15238  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  5924.333  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  142.50614021859  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  3.4278962471166  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 20,308 can be divided by 6 positive divisors (out of which 4 are even, and 2 are odd). The sum of these divisors (counting 20,308) is 35,546, the average is 59,24.,333.
Other Arithmetic Functions (n = 20308)
φ(n)  Euler Totient  10152  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  5076  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 2297  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  8  The number of ways n can be represented as the sum of 2 squares 
There are 10,152 positive integers (less than 20,308) that are coprime with 20,308. And there are approximately 2,297 prime numbers less than or equal to 20,308.
Divisibility of 20308
m  2  3  4  5  6  7  8  9 

n mod m  0  1  0  3  4  1  4  4 
The number 20,308 is divisible by 2 and 4.
Classification of 20308
By Arithmetic functions
 Deficient
Expressible via specific sums
 Polite
Base conversion (20308)
Base  System  Value 

2  Binary  100111101010100 
3  Ternary  1000212011 
4  Quaternary  10331110 
5  Quinary  1122213 
6  Senary  234004 
8  Octal  47524 
10  Decimal  20308 
12  Duodecimal  b904 
16  Hexadecimal  4f54 
20  Vigesimal  2af8 
36  Base36  fo4 
Basic calculations (n = 20308)
Multiplication
n×yn×2  40616 

n×3  60924 
n×4  81232 
n×5  101540 
Division
n÷yn÷2  10154.000 

n÷3  6769.333 
n÷4  5077.000 
n÷5  4061.600 
Exponentiation
n^{y}n^{2}  412414864 

n^{3}  8375321058112 
n^{4}  170086020048138496 
n^{5}  3454106895137596576768 
Nth Root
^{y}√n^{2}√n  142.50614021859 

^{3}√n  27.28280704855 
^{4}√n  11.937593568998 
^{5}√n  7.2699835964851 
20308 as geometric shapes
Circle
Radius = nDiameter  40616 

Circumference  127598.9272182 
Area  1295639506.9736 
Sphere
Radius = nVolume  35082462810161 

Surface area  5182558027.8945 
Circumference  127598.9272182 
Square
Length = nPerimeter  81232 

Area  412414864 
Diagonal  28719.849024673 
Cube
Length = nSurface area  2474489184 

Volume  8375321058112 
Space diagonal  35174.487800109 
Equilateral Triangle
Length = nPerimeter  60924 

Area  178580874.56115 
Altitude  17587.243900054 
Triangular Pyramid
Length = nSurface area  714323498.24461 

Volume  987041052467.58 
Height  16581.41256548 
Cryptographic Hash Functions
md5  3ed14dec416ac8e278f2375543bcf7da 

sha1  55742574b53ba515d044cec6fba065816f5e1263 
sha256  158caa6915ac2c16c99f4cd3f842c131938932696e97051c0487f942960031a5 
sha512  b9dcb3834aeb6cba0c7c75a9cff6f4e4dd8e90c5f9178a412b8c70e7d86b67fbb9ca29aafbb8cfd305081b3ac441db503a3f59f0da12cde110f1a16ad436f054 
ripemd160  e01c5a53c95f9071f7cc81c4ad1349a7956278b1 