31425 (number)
31,425 (thirtyone thousand four hundred twentyfive) is an odd fivedigits composite number following 31424 and preceding 31426. In scientific notation, it is written as 3.1425 × 10^{4}. The sum of its digits is 15. It has a total of 4 prime factors and 12 positive divisors. There are 16,720 positive integers (up to 31425) that are relatively prime to 31425.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 5
 Sum of Digits 15
 Digital Root 6
Name
Short name  31 thousand 425 

Full name  thirtyone thousand four hundred twentyfive 
Notation
Scientific notation  3.1425 × 10^{4} 

Engineering notation  31.425 × 10^{3} 
Prime Factorization of 31425
Prime Factorization 3 × 5^{2} × 419
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  4  Total number of prime factors 
rad(n)  Radical  6285  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 31,425 is 3 × 5^{2} × 419. Since it has a total of 4 prime factors, 31,425 is a composite number.
Divisors of 31425
12 divisors
τ(n)  Total Divisors  12  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  52080  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  20655  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  4340  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  177.27097901236  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  7.2407834101382  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 31,425 can be divided by 12 positive divisors (out of which 0 are even, and 12 are odd). The sum of these divisors (counting 31,425) is 52,080, the average is 4,340.
Other Arithmetic Functions (n = 31425)
φ(n)  Euler Totient  16720  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  4180  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 3386  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  0  The number of ways n can be represented as the sum of 2 squares 
There are 16,720 positive integers (less than 31,425) that are coprime with 31,425. And there are approximately 3,386 prime numbers less than or equal to 31,425.
Divisibility of 31425
m  2  3  4  5  6  7  8  9 

n mod m  1  0  1  0  3  2  1  6 
The number 31,425 is divisible by 3 and 5.
Classification of 31425
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
Base conversion (31425)
Base  System  Value 

2  Binary  111101011000001 
3  Ternary  1121002220 
4  Quaternary  13223001 
5  Quinary  2001200 
6  Senary  401253 
8  Octal  75301 
10  Decimal  31425 
12  Duodecimal  16229 
16  Hexadecimal  7ac1 
20  Vigesimal  3ib5 
36  Base36  o8x 
Basic calculations (n = 31425)
Multiplication
n×yn×2  62850 

n×3  94275 
n×4  125700 
n×5  157125 
Division
n÷yn÷2  15712.500 

n÷3  10475.000 
n÷4  7856.250 
n÷5  6285.000 
Exponentiation
n^{y}n^{2}  987530625 

n^{3}  31033149890625 
n^{4}  975216735312890625 
n^{5}  30646185907207587890625 
Nth Root
^{y}√n^{2}√n  177.27097901236 

^{3}√n  31.556713150096 
^{4}√n  13.31431481573 
^{5}√n  7.9333215498222 
31425 as geometric shapes
Circle
Radius = nDiameter  62850 

Circumference  197449.09827812 
Area  3102418956.6949 
Sphere
Radius = nVolume  1.2999135428552E+14 

Surface area  12409675826.78 
Circumference  197449.09827812 
Square
Length = nPerimeter  125700 

Area  987530625 
Diagonal  44441.661197575 
Cube
Length = nSurface area  5925183750 

Volume  31033149890625 
Space diagonal  54429.696627852 
Equilateral Triangle
Length = nPerimeter  94275 

Area  427613304.13256 
Altitude  27214.848313926 
Triangular Pyramid
Length = nSurface area  1710453216.5302 

Volume  3657291788206.6 
Height  25658.405055654 
Cryptographic Hash Functions
md5  d79f7940be5afa4e3fa70cd73295878f 

sha1  2bbb04cb21f72111802468fd622cbdc5c32a2fc8 
sha256  51b974e9a65232a0435b84d173f110e603c5adf52211c7d36eafbf5b58efae59 
sha512  53bccce601fd70967341466e87e6adff3c8c8ee477a0fff1577e6ab2bb5d7b24a1bf8feead75f57569c07e2b63aa90d013927a03b2ba9891953fe84b286766a8 
ripemd160  a158d839852fb95b19641b3168b16f842162f018 