36781 (number)
36,781 (thirtysix thousand seven hundred eightyone) is an odd fivedigits prime number following 36780 and preceding 36782. In scientific notation, it is written as 3.6781 × 10^{4}. The sum of its digits is 25. It has a total of 1 prime factor and 2 positive divisors. There are 36,780 positive integers (up to 36781) that are relatively prime to 36781.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 5
 Sum of Digits 25
 Digital Root 7
Name
Short name  36 thousand 781 

Full name  thirtysix thousand seven hundred eightyone 
Notation
Scientific notation  3.6781 × 10^{4} 

Engineering notation  36.781 × 10^{3} 
Prime Factorization of 36781
Prime Factorization 36781
Prime numberω(n)  Distinct Factors  1  Total number of distinct prime factors 

Ω(n)  Total Factors  1  Total number of prime factors 
rad(n)  Radical  36781  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  10.512736686478  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 36,781 is 36781. Since it has a total of 1 prime factor, 36,781 is a prime number.
Divisors of 36781
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  36782  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  18391  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  191.78373236539  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.9999456255777  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 36,781 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 36,781) is 36,782, the average is 18,391.
Other Arithmetic Functions (n = 36781)
φ(n)  Euler Totient  36780  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  36780  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 3897  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 36,780 positive integers (less than 36,781) that are coprime with 36,781. And there are approximately 3,897 prime numbers less than or equal to 36,781.
Divisibility of 36781
m  2  3  4  5  6  7  8  9 

n mod m  1  1  1  1  1  3  5  7 
36,781 is not divisible by any number less than or equal to 9.
Classification of 36781
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Prime Power
 Square Free
Base conversion (36781)
Base  System  Value 

2  Binary  1000111110101101 
3  Ternary  1212110021 
4  Quaternary  20332231 
5  Quinary  2134111 
6  Senary  442141 
8  Octal  107655 
10  Decimal  36781 
12  Duodecimal  19351 
16  Hexadecimal  8fad 
20  Vigesimal  4bj1 
36  Base36  sdp 
Basic calculations (n = 36781)
Multiplication
n×yn×2  73562 

n×3  110343 
n×4  147124 
n×5  183905 
Division
n÷yn÷2  18390.500 

n÷3  12260.333 
n÷4  9195.250 
n÷5  7356.200 
Exponentiation
n^{y}n^{2}  1352841961 

n^{3}  49758880167541 
n^{4}  1830181371442325521 
n^{5}  67315901023020174987901 
Nth Root
^{y}√n^{2}√n  191.78373236539 

^{3}√n  33.256344540898 
^{4}√n  13.848600375684 
^{5}√n  8.1869984191014 
36781 as geometric shapes
Circle
Radius = nDiameter  73562 

Circumference  231101.83878337 
Area  4250078366.1456 
Sphere
Radius = nVolume  2.0842950984694E+14 

Surface area  17000313464.582 
Circumference  231101.83878337 
Square
Length = nPerimeter  147124 

Area  1352841961 
Diagonal  52016.189037645 
Cube
Length = nSurface area  8117051766 

Volume  49758880167541 
Space diagonal  63706.560753191 
Equilateral Triangle
Length = nPerimeter  110343 

Area  585797752.76578 
Altitude  31853.280376595 
Triangular Pyramid
Length = nSurface area  2343191011.0631 

Volume  5864140265119.5 
Height  30031.560743103 
Cryptographic Hash Functions
md5  7c4bbe3b40bfbd75077c9b6fc69c43e8 

sha1  84902cbd93637fb73a00e20ab8f0633db83db4dc 
sha256  6459a413090b2c69f8fd4617fb5b81d4157cc7c9d5dba078d093dc70677ac001 
sha512  42abd8175bd15d3ca7cac7f2d6f2e73576d9b5bfaf046b10b08a0e94804909479b7f3bf18c43c853b971cdc4cdb6b198c0f5dfc6153ef76880dda154a642f095 
ripemd160  502673fd4e55a07e108057a19061041415f7a751 