5681 (number)
5,681 (five thousand six hundred eightyone) is an odd fourdigits composite number following 5680 and preceding 5682. In scientific notation, it is written as 5.681 × 10^{3}. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 4,752 positive integers (up to 5681) that are relatively prime to 5681.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 4
 Sum of Digits 20
 Digital Root 2
Name
Short name  5 thousand 681 

Full name  five thousand six hundred eightyone 
Notation
Scientific notation  5.681 × 10^{3} 

Engineering notation  5.681 × 10^{3} 
Prime Factorization of 5681
Prime Factorization 13 × 19 × 23
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  5681  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 5,681 is 13 × 19 × 23. Since it has a total of 3 prime factors, 5,681 is a composite number.
Divisors of 5681
8 divisors
τ(n)  Total Divisors  8  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  6720  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1039  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  840  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  75.372408744845  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  6.7630952380952  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 5,681 can be divided by 8 positive divisors (out of which 0 are even, and 8 are odd). The sum of these divisors (counting 5,681) is 6,720, the average is 840.
Other Arithmetic Functions (n = 5681)
φ(n)  Euler Totient  4752  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  396  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 751  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 4,752 positive integers (less than 5,681) that are coprime with 5,681. And there are approximately 751 prime numbers less than or equal to 5,681.
Divisibility of 5681
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  1  5  4  1  2 
5,681 is not divisible by any number less than or equal to 9.
Classification of 5681
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
 Sphenic
Base conversion (5681)
Base  System  Value 

2  Binary  1011000110001 
3  Ternary  21210102 
4  Quaternary  1120301 
5  Quinary  140211 
6  Senary  42145 
8  Octal  13061 
10  Decimal  5681 
12  Duodecimal  3355 
16  Hexadecimal  1631 
20  Vigesimal  e41 
36  Base36  4dt 
Basic calculations (n = 5681)
Multiplication
n×yn×2  11362 

n×3  17043 
n×4  22724 
n×5  28405 
Division
n÷yn÷2  2840.500 

n÷3  1893.666 
n÷4  1420.250 
n÷5  1136.200 
Exponentiation
n^{y}n^{2}  32273761 

n^{3}  183347236241 
n^{4}  1041595649085121 
n^{5}  5917304882452572401 
Nth Root
^{y}√n^{2}√n  75.372408744845 

^{3}√n  17.843289827447 
^{4}√n  8.6817284422427 
^{5}√n  5.6348837118159 
5681 as geometric shapes
Circle
Radius = nDiameter  11362 

Circumference  35694.775730087 
Area  101391010.46131 
Sphere
Radius = nVolume  768003107240.96 

Surface area  405564041.84525 
Circumference  35694.775730087 
Square
Length = nPerimeter  22724 

Area  32273761 
Diagonal  8034.1472478416 
Cube
Length = nSurface area  193642566 

Volume  183347236241 
Space diagonal  9839.7806377988 
Equilateral Triangle
Length = nPerimeter  17043 

Area  13974948.450834 
Altitude  4919.8903188994 
Triangular Pyramid
Length = nSurface area  55899793.803335 

Volume  21607679009.637 
Height  4638.5170762504 
Cryptographic Hash Functions
md5  b476828992f393a09339cf6270d30aa8 

sha1  18acb3b42033486c04115500cc799cb48c7bfc05 
sha256  45b120bb08854e18123188f37c3d0b52d06781d415fb5b56a684870a779e09bc 
sha512  99f92724c2f08935f3c1069465de1ac905d8c9c8345d239045af4ddbb3e8cf2dbebe57a8c02df2b15ebf214805b139068f6ee5f6aa67541e820a32ee8f2d713c 
ripemd160  762bd5f22c55eb61aeeb9e51cffd949127386bb7 