70891 (number)
70,891 (seventy thousand eight hundred ninetyone) is an odd fivedigits prime number following 70890 and preceding 70892. In scientific notation, it is written as 7.0891 × 10^{4}. The sum of its digits is 25. It has a total of 1 prime factor and 2 positive divisors. There are 70,890 positive integers (up to 70891) that are relatively prime to 70891.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 5
 Sum of Digits 25
 Digital Root 7
Name
Short name  70 thousand 891 

Full name  seventy thousand eight hundred ninetyone 
Notation
Scientific notation  7.0891 × 10^{4} 

Engineering notation  70.891 × 10^{3} 
Prime Factorization of 70891
Prime Factorization 70891
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  70891  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  11.168898765112  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 70,891 is 70891. Since it has a total of 1 prime factor, 70,891 is a prime number.
Divisors of 70891
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  70892  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  35446  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  266.25363847279  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.999971788072  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 70,891 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 70,891) is 70,892, the average is 35,446.
Other Arithmetic Functions (n = 70891)
φ(n)  Euler Totient  70890  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  70890  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 7023  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 70,890 positive integers (less than 70,891) that are coprime with 70,891. And there are approximately 7,023 prime numbers less than or equal to 70,891.
Divisibility of 70891
m  2  3  4  5  6  7  8  9 

n mod m  1  1  3  1  1  2  3  7 
70,891 is not divisible by any number less than or equal to 9.
Classification of 70891
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
 Nonhypotenuse
By Powers
 Prime Power
 Square Free
Base conversion (70891)
Base  System  Value 

2  Binary  10001010011101011 
3  Ternary  10121020121 
4  Quaternary  101103223 
5  Quinary  4232031 
6  Senary  1304111 
8  Octal  212353 
10  Decimal  70891 
12  Duodecimal  35037 
16  Hexadecimal  114eb 
20  Vigesimal  8h4b 
36  Base36  1ip7 
Basic calculations (n = 70891)
Multiplication
n×yn×2  141782 

n×3  212673 
n×4  283564 
n×5  354455 
Division
n÷yn÷2  35445.500 

n÷3  23630.333 
n÷4  17722.750 
n÷5  14178.200 
Exponentiation
n^{y}n^{2}  5025533881 

n^{3}  356265122357971 
n^{4}  25255990789078922161 
n^{5}  1790422443028593870915451 
Nth Root
^{y}√n^{2}√n  266.25363847279 

^{3}√n  41.38697654099 
^{4}√n  16.317280363859 
^{5}√n  9.3350837916032 
70891 as geometric shapes
Circle
Radius = nDiameter  141782 

Circumference  445421.28961127 
Area  15788180320.916 
Sphere
Radius = nVolume  1.4923198548401E+15 

Surface area  63152721283.665 
Circumference  445421.28961127 
Square
Length = nPerimeter  283564 

Area  5025533881 
Diagonal  100255.01365019 
Cube
Length = nSurface area  30153203286 

Volume  356265122357971 
Space diagonal  122786.81379937 
Equilateral Triangle
Length = nPerimeter  212673 

Area  2176120004.2627 
Altitude  61393.406899683 
Triangular Pyramid
Length = nSurface area  8704480017.0508 

Volume  41986247319929 
Height  57882.259118547 
Cryptographic Hash Functions
md5  77326fc87dc8b13ebf6f720ca17f9288 

sha1  7f4471ae54450a23badcfb42c9205bfbe6c830e2 
sha256  f753db116606685b6c818e75fbcd8b5352adf7872865f0771457385722cf30f0 
sha512  70b32be9ffeb9271b1207ee0846d05413cd2a6322665ff71230d82cbfc8c3b1a55ee613d4d58f33d86678577564ee75453c3d63b18975668b293254c45faca77 
ripemd160  1c0719617f9fbfb3b5ea1237177754ad75bda58c 