39391 (number)
39,391 (thirtynine thousand three hundred ninetyone) is an odd fivedigits composite number following 39390 and preceding 39392. In scientific notation, it is written as 3.9391 × 10^{4}. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 35,800 positive integers (up to 39391) that are relatively prime to 39391.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 5
 Sum of Digits 25
 Digital Root 7
Name
Short name  39 thousand 391 

Full name  thirtynine thousand three hundred ninetyone 
Notation
Scientific notation  3.9391 × 10^{4} 

Engineering notation  39.391 × 10^{3} 
Prime Factorization of 39391
Prime Factorization 11 × 3581
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  2  Total number of prime factors 
rad(n)  Radical  39391  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 39,391 is 11 × 3581. Since it has a total of 2 prime factors, 39,391 is a composite number.
Divisors of 39391
4 divisors
τ(n)  Total Divisors  4  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  42984  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  3593  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  10746  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  198.47166044552  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  3.6656430299646  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 39,391 can be divided by 4 positive divisors (out of which 0 are even, and 4 are odd). The sum of these divisors (counting 39,391) is 42,984, the average is 10,746.
Other Arithmetic Functions (n = 39391)
φ(n)  Euler Totient  35800  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  3580  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 4143  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 35,800 positive integers (less than 39,391) that are coprime with 39,391. And there are approximately 4,143 prime numbers less than or equal to 39,391.
Divisibility of 39391
m  2  3  4  5  6  7  8  9 

n mod m  1  1  3  1  1  2  7  7 
39,391 is not divisible by any number less than or equal to 9.
Classification of 39391
By Arithmetic functions
 Arithmetic
 Semiprime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
Base conversion (39391)
Base  System  Value 

2  Binary  1001100111011111 
3  Ternary  2000000221 
4  Quaternary  21213133 
5  Quinary  2230031 
6  Senary  502211 
8  Octal  114737 
10  Decimal  39391 
12  Duodecimal  1a967 
16  Hexadecimal  99df 
20  Vigesimal  4i9b 
36  Base36  ue7 
Basic calculations (n = 39391)
Multiplication
n×yn×2  78782 

n×3  118173 
n×4  157564 
n×5  196955 
Division
n÷yn÷2  19695.500 

n÷3  13130.333 
n÷4  9847.750 
n÷5  7878.200 
Exponentiation
n^{y}n^{2}  1551650881 

n^{3}  61121079853471 
n^{4}  2407620456508076161 
n^{5}  94838577402309628057951 
Nth Root
^{y}√n^{2}√n  198.47166044552 

^{3}√n  34.025068018132 
^{4}√n  14.087997034551 
^{5}√n  8.3000250142192 
39391 as geometric shapes
Circle
Radius = nDiameter  78782 

Circumference  247500.95243511 
Area  4874655008.6857 
Sphere
Radius = nVolume  2.5602338059619E+14 

Surface area  19498620034.743 
Circumference  247500.95243511 
Square
Length = nPerimeter  157564 

Area  1551650881 
Diagonal  55707.286435439 
Cube
Length = nSurface area  9309905286 

Volume  61121079853471 
Space diagonal  68227.213360946 
Equilateral Triangle
Length = nPerimeter  118173 

Area  671884540.37525 
Altitude  34113.606680473 
Triangular Pyramid
Length = nSurface area  2687538161.501 

Volume  7203188339639 
Height  32162.616819324 
Cryptographic Hash Functions
md5  628a5609738c5431003e28cd9b913a62 

sha1  f29e918c3f2b8269435788f97e1aef56a3e7cf3e 
sha256  8d04b510906b5dcf2a5a73d71448d3233d4c8cb856570b7d7a6dcb053558551a 
sha512  226ac1c31963e18ad8a6ca41247ebe73c37166be674e2abd1723218c0d9cc5ccd2f79e17194d6722b1cbdc0d53684c1958027aa7de14f83891091cebe8bd4b71 
ripemd160  699356427f3edb589515a058cacc0eed062b082d 