28704 (number)
28,704 (twentyeight thousand seven hundred four) is an even fivedigits composite number following 28703 and preceding 28705. In scientific notation, it is written as 2.8704 × 10^{4}. The sum of its digits is 21. It has a total of 8 prime factors and 48 positive divisors. There are 8,448 positive integers (up to 28704) that are relatively prime to 28704.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 5
 Sum of Digits 21
 Digital Root 3
Name
Short name  28 thousand 704 

Full name  twentyeight thousand seven hundred four 
Notation
Scientific notation  2.8704 × 10^{4} 

Engineering notation  28.704 × 10^{3} 
Prime Factorization of 28704
Prime Factorization 2^{5} × 3 × 13 × 23
Composite numberω(n)  Distinct Factors  4  Total number of distinct prime factors 

Ω(n)  Total Factors  8  Total number of prime factors 
rad(n)  Radical  1794  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 28,704 is 2^{5} × 3 × 13 × 23. Since it has a total of 8 prime factors, 28,704 is a composite number.
Divisors of 28704
48 divisors
τ(n)  Total Divisors  48  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  84672  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  55968  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  1764  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  169.42254867638  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  16.272108843537  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 28,704 can be divided by 48 positive divisors (out of which 40 are even, and 8 are odd). The sum of these divisors (counting 28,704) is 84,672, the average is 1,764.
Other Arithmetic Functions (n = 28704)
φ(n)  Euler Totient  8448  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  528  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 3124  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 8,448 positive integers (less than 28,704) that are coprime with 28,704. And there are approximately 3,124 prime numbers less than or equal to 28,704.
Divisibility of 28704
m  2  3  4  5  6  7  8  9 

n mod m  0  0  0  4  0  4  0  3 
The number 28,704 is divisible by 2, 3, 4, 6 and 8.
Classification of 28704
By Arithmetic functions
 Arithmetic
 Refactorable
 Abundant
Expressible via specific sums
 Polite
 Practical
Base conversion (28704)
Base  System  Value 

2  Binary  111000000100000 
3  Ternary  1110101010 
4  Quaternary  13000200 
5  Quinary  1404304 
6  Senary  340520 
8  Octal  70040 
10  Decimal  28704 
12  Duodecimal  14740 
16  Hexadecimal  7020 
20  Vigesimal  3bf4 
36  Base36  m5c 
Basic calculations (n = 28704)
Multiplication
n×yn×2  57408 

n×3  86112 
n×4  114816 
n×5  143520 
Division
n÷yn÷2  14352.000 

n÷3  9568.000 
n÷4  7176.000 
n÷5  5740.800 
Exponentiation
n^{y}n^{2}  823919616 

n^{3}  23649788657664 
n^{4}  678843533629587456 
n^{5}  19485524789303678337024 
Nth Root
^{y}√n^{2}√n  169.42254867638 

^{3}√n  30.618281186071 
^{4}√n  13.016241726258 
^{5}√n  7.7909153249348 
28704 as geometric shapes
Circle
Radius = nDiameter  57408 

Circumference  180352.55105728 
Area  2588419812.7741 
Sphere
Radius = nVolume  99064003074491 

Surface area  10353679251.096 
Circumference  180352.55105728 
Square
Length = nPerimeter  114816 

Area  823919616 
Diagonal  40593.586094357 
Cube
Length = nSurface area  4943517696 

Volume  23649788657664 
Space diagonal  49716.786380457 
Equilateral Triangle
Length = nPerimeter  86112 

Area  356767659.06616 
Altitude  24858.393190229 
Triangular Pyramid
Length = nSurface area  1427070636.2646 

Volume  2787154322243.8 
Height  23436.717858949 
Cryptographic Hash Functions
md5  89bdedf8c38bda669ba5aba697d7703b 

sha1  00de4e5b8152988147d4700a3884ebcf0cc4f214 
sha256  4e5e3807c4bd76f5003e5caa7d9228e1e4381c0d827851ac0ac007c9057ba6f9 
sha512  2d7fa5aa5603f0f590b1c5a1f644d79bf1df11cd077e8cb99cc3b51da368ac708fec4a00eeb38717a2c2a63637084d5f92e6da69c8dfaab6855796958a646f41 
ripemd160  a5699bc765bc29e9e3223ae73050d537ded8d79f 