4805 (number)
4,805 (four thousand eight hundred five) is an odd fourdigits composite number following 4804 and preceding 4806. In scientific notation, it is written as 4.805 × 10^{3}. The sum of its digits is 17. It has a total of 3 prime factors and 6 positive divisors. There are 3,720 positive integers (up to 4805) that are relatively prime to 4805.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 4
 Sum of Digits 17
 Digital Root 8
Name
Short name  4 thousand 805 

Full name  four thousand eight hundred five 
Notation
Scientific notation  4.805 × 10^{3} 

Engineering notation  4.805 × 10^{3} 
Prime Factorization of 4805
Prime Factorization 5 × 31^{2}
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  155  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 4,805 is 5 × 31^{2}. Since it has a total of 3 prime factors, 4,805 is a composite number.
Divisors of 4805
6 divisors
τ(n)  Total Divisors  6  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  5958  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1153  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  993  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  69.318107302493  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  4.8388721047331  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 4,805 can be divided by 6 positive divisors (out of which 0 are even, and 6 are odd). The sum of these divisors (counting 4,805) is 5,958, the average is 993.
Other Arithmetic Functions (n = 4805)
φ(n)  Euler Totient  3720  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  1860  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 650  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 3,720 positive integers (less than 4,805) that are coprime with 4,805. And there are approximately 650 prime numbers less than or equal to 4,805.
Divisibility of 4805
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  0  5  3  5  8 
The number 4,805 is divisible by 5.
Classification of 4805
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
Other numbers
 Frugal
Base conversion (4805)
Base  System  Value 

2  Binary  1001011000101 
3  Ternary  20120222 
4  Quaternary  1023011 
5  Quinary  123210 
6  Senary  34125 
8  Octal  11305 
10  Decimal  4805 
12  Duodecimal  2945 
16  Hexadecimal  12c5 
20  Vigesimal  c05 
36  Base36  3ph 
Basic calculations (n = 4805)
Multiplication
n×yn×2  9610 

n×3  14415 
n×4  19220 
n×5  24025 
Division
n÷yn÷2  2402.500 

n÷3  1601.666 
n÷4  1201.250 
n÷5  961.000 
Exponentiation
n^{y}n^{2}  23088025 

n^{3}  110937960125 
n^{4}  533056898400625 
n^{5}  2561338396815003125 
Nth Root
^{y}√n^{2}√n  69.318107302493 

^{3}√n  16.874508444758 
^{4}√n  8.3257496540848 
^{5}√n  5.4492744113563 
4805 as geometric shapes
Circle
Radius = nDiameter  9610 

Circumference  30190.705400998 
Area  72533169.725897 
Sphere
Radius = nVolume  464695840710.58 

Surface area  290132678.90359 
Circumference  30190.705400998 
Square
Length = nPerimeter  19220 

Area  23088025 
Diagonal  6795.2961672027 
Cube
Length = nSurface area  138528150 

Volume  110937960125 
Space diagonal  8322.5041303685 
Equilateral Triangle
Length = nPerimeter  14415 

Area  9997408.0866051 
Altitude  4161.2520651842 
Triangular Pyramid
Length = nSurface area  39989632.34642 

Volume  13074163982.565 
Height  3923.2660713577 
Cryptographic Hash Functions
md5  a821a161aa4214f5ff5b8ca372960ebb 

sha1  b707c6ddb2ac80c9bced5daa5def738068799b41 
sha256  b3e34e9fe5a79d4e8753d0ad4107d0af969d8faaefb88fbd68316950fa2a9242 
sha512  78cc6dfac4b7676ca8ad36e52512c8b5be9f43426cc31a752b4e9bb661f81ac206a5e81be50f716638c16ba008442204addaffe11c2348765b0ea4242a1e39fa 
ripemd160  5bd41bd95fd71470d9a3225528ceb70fefbbea5f 