25285 (number)
25,285 (twentyfive thousand two hundred eightyfive) is an odd fivedigits composite number following 25284 and preceding 25286. In scientific notation, it is written as 2.5285 × 10^{4}. The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors. There are 18,624 positive integers (up to 25285) that are relatively prime to 25285.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 5
 Sum of Digits 22
 Digital Root 4
Name
Short name  25 thousand 285 

Full name  twentyfive thousand two hundred eightyfive 
Notation
Scientific notation  2.5285 × 10^{4} 

Engineering notation  25.285 × 10^{3} 
Prime Factorization of 25285
Prime Factorization 5 × 13 × 389
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  3  Total number of prime factors 
rad(n)  Radical  25285  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  1  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 25,285 is 5 × 13 × 389. Since it has a total of 3 prime factors, 25,285 is a composite number.
Divisors of 25285
8 divisors
τ(n)  Total Divisors  8  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  32760  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  7475  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  4095  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  159.01257811884  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  6.1746031746032  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 25,285 can be divided by 8 positive divisors (out of which 0 are even, and 8 are odd). The sum of these divisors (counting 25,285) is 32,760, the average is 4,095.
Other Arithmetic Functions (n = 25285)
φ(n)  Euler Totient  18624  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  1164  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 2790  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  32  The number of ways n can be represented as the sum of 2 squares 
There are 18,624 positive integers (less than 25,285) that are coprime with 25,285. And there are approximately 2,790 prime numbers less than or equal to 25,285.
Divisibility of 25285
m  2  3  4  5  6  7  8  9 

n mod m  1  1  1  0  1  1  5  4 
The number 25,285 is divisible by 5.
Classification of 25285
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
By Shape (2D, noncentered)
 Pentagonal
By Powers
 Square Free
Other numbers
 LucasCarmichael
 Sphenic
Base conversion (25285)
Base  System  Value 

2  Binary  110001011000101 
3  Ternary  1021200111 
4  Quaternary  12023011 
5  Quinary  1302120 
6  Senary  313021 
8  Octal  61305 
10  Decimal  25285 
12  Duodecimal  12771 
16  Hexadecimal  62c5 
20  Vigesimal  3345 
36  Base36  jid 
Basic calculations (n = 25285)
Multiplication
n×yn×2  50570 

n×3  75855 
n×4  101140 
n×5  126425 
Division
n÷yn÷2  12642.500 

n÷3  8428.333 
n÷4  6321.250 
n÷5  5057.000 
Exponentiation
n^{y}n^{2}  639331225 

n^{3}  16165490024125 
n^{4}  408744415260000625 
n^{5}  10335102539849115803125 
Nth Root
^{y}√n^{2}√n  159.01257811884 

^{3}√n  29.350870481976 
^{4}√n  12.61001895791 
^{5}√n  7.5957837430806 
25285 as geometric shapes
Circle
Radius = nDiameter  50570 

Circumference  158870.34049204 
Area  2008518279.6706 
Sphere
Radius = nVolume  67713846268627 

Surface area  8034073118.6823 
Circumference  158870.34049204 
Square
Length = nPerimeter  101140 

Area  639331225 
Diagonal  35758.389924604 
Cube
Length = nSurface area  3835987350 

Volume  16165490024125 
Space diagonal  43794.904669379 
Equilateral Triangle
Length = nPerimeter  75855 

Area  276838541.14131 
Altitude  21897.45233469 
Triangular Pyramid
Length = nSurface area  1107354164.5652 

Volume  1905121269543.7 
Height  20645.116048758 
Cryptographic Hash Functions
md5  1ef039b8c360653698d917512eb41140 

sha1  a699348432ae30761b6892a03041b814831abb2d 
sha256  b7f9434f2fc97875c7cfa62693374d13f7c66bff3e23631fb8b8afb3e3ed31a2 
sha512  40d6b1a1cceeb62a71abb1d1964c5e4d2549ecc59248a7429cff685ff2497f3f8c68821dc3e242a5a4eb3d186d41cba49a17c685b063c60f8728030455196201 
ripemd160  3096c65fe4d371fefaf06d2dcae7aa7b16aac9d3 