31086 (number)
31,086 (thirtyone thousand eightysix) is an even fivedigits composite number following 31085 and preceding 31087. In scientific notation, it is written as 3.1086 × 10^{4}. The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors. There are 9,360 positive integers (up to 31086) that are relatively prime to 31086.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 5
 Sum of Digits 18
 Digital Root 9
Name
Short name  31 thousand 86 

Full name  thirtyone thousand eightysix 
Notation
Scientific notation  3.1086 × 10^{4} 

Engineering notation  31.086 × 10^{3} 
Prime Factorization of 31086
Prime Factorization 2 × 3^{2} × 11 × 157
Composite numberω(n)  Distinct Factors  4  Total number of distinct prime factors 

Ω(n)  Total Factors  5  Total number of prime factors 
rad(n)  Radical  10362  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 31,086 is 2 × 3^{2} × 11 × 157. Since it has a total of 5 prime factors, 31,086 is a composite number.
Divisors of 31086
24 divisors
τ(n)  Total Divisors  24  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  73944  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  42858  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  3081  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  176.31222305898  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  10.089581304771  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 31,086 can be divided by 24 positive divisors (out of which 12 are even, and 12 are odd). The sum of these divisors (counting 31,086) is 73,944, the average is 3,081.
Other Arithmetic Functions (n = 31086)
φ(n)  Euler Totient  9360  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  780  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 3354  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 9,360 positive integers (less than 31,086) that are coprime with 31,086. And there are approximately 3,354 prime numbers less than or equal to 31,086.
Divisibility of 31086
m  2  3  4  5  6  7  8  9 

n mod m  0  0  2  1  0  6  6  0 
The number 31,086 is divisible by 2, 3, 6 and 9.
Classification of 31086
By Arithmetic functions
 Arithmetic
 Abundant
Expressible via specific sums
 Polite
 Practical
Base conversion (31086)
Base  System  Value 

2  Binary  111100101101110 
3  Ternary  1120122100 
4  Quaternary  13211232 
5  Quinary  1443321 
6  Senary  355530 
8  Octal  74556 
10  Decimal  31086 
12  Duodecimal  15ba6 
16  Hexadecimal  796e 
20  Vigesimal  3he6 
36  Base36  nzi 
Basic calculations (n = 31086)
Multiplication
n×yn×2  62172 

n×3  93258 
n×4  124344 
n×5  155430 
Division
n÷yn÷2  15543.000 

n÷3  10362.000 
n÷4  7771.500 
n÷5  6217.200 
Exponentiation
n^{y}n^{2}  966339396 

n^{3}  30039626464056 
n^{4}  933811828261644816 
n^{5}  29028474493341490750176 
Nth Root
^{y}√n^{2}√n  176.31222305898 

^{3}√n  31.442829028884 
^{4}√n  13.278261296532 
^{5}√n  7.9161309275134 
31086 as geometric shapes
Circle
Radius = nDiameter  62172 

Circumference  195319.09845898 
Area  3035844747.348 
Sphere
Radius = nVolume  1.2582969308808E+14 

Surface area  12143378989.392 
Circumference  195319.09845898 
Square
Length = nPerimeter  124344 

Area  966339396 
Diagonal  43962.24279993 
Cube
Length = nSurface area  5798036376 

Volume  30039626464056 
Space diagonal  53842.531404086 
Equilateral Triangle
Length = nPerimeter  93258 

Area  418437232.80686 
Altitude  26921.265702043 
Triangular Pyramid
Length = nSurface area  1673748931.2274 

Volume  3540203929507.5 
Height  25381.612714719 
Cryptographic Hash Functions
md5  49dee2008d36b4304fcb72e867f40c14 

sha1  3f485ba7e079d2d2cd6e282978f8ae580bf40b5f 
sha256  56b5e147744f262b1852899af7d432e9a330f975fc0e251b7df80d09014358b1 
sha512  580f08d93a7694750a034df4b8db551e7217c2c673c88164e4a5b4de4bdccf31277624c8ab9af8b3dc2d328f57c521101fce068f26166b55752603dbddad098e 
ripemd160  a178c5240d8e04bd47853028e41c3e0a40f1ad7b 