6870 (number)
6,870 (six thousand eight hundred seventy) is an even fourdigits composite number following 6869 and preceding 6871. In scientific notation, it is written as 6.87 × 10^{3}. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 1,824 positive integers (up to 6870) that are relatively prime to 6870.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 4
 Sum of Digits 21
 Digital Root 3
Name
Short name  6 thousand 870 

Full name  six thousand eight hundred seventy 
Notation
Scientific notation  6.87 × 10^{3} 

Engineering notation  6.87 × 10^{3} 
Prime Factorization of 6870
Prime Factorization 2 × 3 × 5 × 229
Composite numberω(n)  Distinct Factors  4  Total number of distinct prime factors 

Ω(n)  Total Factors  4  Total number of prime factors 
rad(n)  Radical  6870  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 6,870 is 2 × 3 × 5 × 229. Since it has a total of 4 prime factors, 6,870 is a composite number.
Divisors of 6870
16 divisors
τ(n)  Total Divisors  16  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  16560  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  9690  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  1035  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  82.885463140408  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  6.6376811594203  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 6,870 can be divided by 16 positive divisors (out of which 8 are even, and 8 are odd). The sum of these divisors (counting 6,870) is 16,560, the average is 1,035.
Other Arithmetic Functions (n = 6870)
φ(n)  Euler Totient  1824  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  228  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 886  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 1,824 positive integers (less than 6,870) that are coprime with 6,870. And there are approximately 886 prime numbers less than or equal to 6,870.
Divisibility of 6870
m  2  3  4  5  6  7  8  9 

n mod m  0  0  2  0  0  3  6  3 
The number 6,870 is divisible by 2, 3, 5 and 6.
Classification of 6870
By Arithmetic functions
 Arithmetic
 Abundant
Expressible via specific sums
 Polite
By Powers
 Square Free
Base conversion (6870)
Base  System  Value 

2  Binary  1101011010110 
3  Ternary  100102110 
4  Quaternary  1223112 
5  Quinary  204440 
6  Senary  51450 
8  Octal  15326 
10  Decimal  6870 
12  Duodecimal  3b86 
16  Hexadecimal  1ad6 
20  Vigesimal  h3a 
36  Base36  5au 
Basic calculations (n = 6870)
Multiplication
n×yn×2  13740 

n×3  20610 
n×4  27480 
n×5  34350 
Division
n÷yn÷2  3435.000 

n÷3  2290.000 
n÷4  1717.500 
n÷5  1374.000 
Exponentiation
n^{y}n^{2}  47196900 

n^{3}  324242703000 
n^{4}  2227547369610000 
n^{5}  15303250429220700000 
Nth Root
^{y}√n^{2}√n  82.885463140408 

^{3}√n  19.010151546521 
^{4}√n  9.1041453822096 
^{5}√n  5.8531728225267 
6870 as geometric shapes
Circle
Radius = nDiameter  13740 

Circumference  43165.483060324 
Area  148273434.31221 
Sphere
Radius = nVolume  1358184658299.9 

Surface area  593093737.24885 
Circumference  43165.483060324 
Square
Length = nPerimeter  27480 

Area  47196900 
Diagonal  9715.6471735032 
Cube
Length = nSurface area  283181400 

Volume  324242703000 
Space diagonal  11899.189047998 
Equilateral Triangle
Length = nPerimeter  20610 

Area  20436857.189937 
Altitude  5949.5945239991 
Triangular Pyramid
Length = nSurface area  81747428.759748 

Volume  38212369006.926 
Height  5609.3315109735 
Cryptographic Hash Functions
md5  e474e8520850a6f3d13f268666736f33 

sha1  9668f62ee5e05aebd867bf8c84eef5c9d9e1c4da 
sha256  e9ab8bc5c3509451b36cca93c8b7a8d2a3a4b2896cc691e8bd6deacbf2f69916 
sha512  258623f0867e348c6a0f0449e3958cd4f569153dea107f8b5c378a5c7f380625d62f6caf5f185c96481bd393a58425c9951bc825cc8821fa42703254437aa6f6 
ripemd160  aabddefef60bec2c075f3fe5f282bfdbcfc4cf00 