28493 (number)
28,493 (twentyeight thousand four hundred ninetythree) is an odd fivedigits prime number following 28492 and preceding 28494. In scientific notation, it is written as 2.8493 × 10^{4}. The sum of its digits is 26. It has a total of 1 prime factor and 2 positive divisors. There are 28,492 positive integers (up to 28493) that are relatively prime to 28493.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 5
 Sum of Digits 26
 Digital Root 8
Name
Short name  28 thousand 493 

Full name  twentyeight thousand four hundred ninetythree 
Notation
Scientific notation  2.8493 × 10^{4} 

Engineering notation  28.493 × 10^{3} 
Prime Factorization of 28493
Prime Factorization 28493
Prime numberω(n)  Distinct Factors  1  Total number of distinct prime factors 

Ω(n)  Total Factors  1  Total number of prime factors 
rad(n)  Radical  28493  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  10.257413722054  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 28,493 is 28493. Since it has a total of 1 prime factor, 28,493 is a prime number.
Divisors of 28493
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  28494  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  14247  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  168.79869667743  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.9999298097845  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 28,493 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 28,493) is 28,494, the average is 14,247.
Other Arithmetic Functions (n = 28493)
φ(n)  Euler Totient  28492  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  28492  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 3103  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 28,492 positive integers (less than 28,493) that are coprime with 28,493. And there are approximately 3,103 prime numbers less than or equal to 28,493.
Divisibility of 28493
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  3  5  3  5  8 
28,493 is not divisible by any number less than or equal to 9.
Classification of 28493
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Prime Power
 Square Free
Base conversion (28493)
Base  System  Value 

2  Binary  110111101001101 
3  Ternary  1110002022 
4  Quaternary  12331031 
5  Quinary  1402433 
6  Senary  335525 
8  Octal  67515 
10  Decimal  28493 
12  Duodecimal  145a5 
16  Hexadecimal  6f4d 
20  Vigesimal  3b4d 
36  Base36  lzh 
Basic calculations (n = 28493)
Multiplication
n×yn×2  56986 

n×3  85479 
n×4  113972 
n×5  142465 
Division
n÷yn÷2  14246.500 

n÷3  9497.666 
n÷4  7123.250 
n÷5  5698.600 
Exponentiation
n^{y}n^{2}  811851049 

n^{3}  23132071939157 
n^{4}  659102125762400401 
n^{5}  18779796869348074625693 
Nth Root
^{y}√n^{2}√n  168.79869667743 

^{3}√n  30.54307270947 
^{4}√n  12.992255257554 
^{5}√n  7.7794274614627 
28493 as geometric shapes
Circle
Radius = nDiameter  56986 

Circumference  179026.79895747 
Area  2550505291.3476 
Sphere
Radius = nVolume  96895396355155 

Surface area  10202021165.39 
Circumference  179026.79895747 
Square
Length = nPerimeter  113972 

Area  811851049 
Diagonal  40295.187032697 
Cube
Length = nSurface area  4871106294 

Volume  23132071939157 
Space diagonal  49351.32366006 
Equilateral Triangle
Length = nPerimeter  85479 

Area  351541816.26152 
Altitude  24675.66183003 
Triangular Pyramid
Length = nSurface area  1406167265.0461 

Volume  2726140821845.5 
Height  23264.437080374 
Cryptographic Hash Functions
md5  3126ed973cbecde2bbffe419f139f456 

sha1  07332bb37768ff64dfb08912d6b8b0f2c51b19df 
sha256  99a964a3bc568850d9ba70e8eaa3fdb371ddfc0dca68ea571ea9111ede30e28a 
sha512  f6f0c96f2ffcdd9c43acc28b36c353341ee90010ef67b3ace6a969b1846308866fa95fb935784d9403f6bb438fdec3fb476b357c83f72d4e8a82771c6d0bfebe 
ripemd160  6b5facc83f327ede7be3ac5442ed2799aae0a523 