6890 (number)
6,890 (six thousand eight hundred ninety) is an even fourdigits composite number following 6889 and preceding 6891. In scientific notation, it is written as 6.89 × 10^{3}. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 2,496 positive integers (up to 6890) that are relatively prime to 6890.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 4
 Sum of Digits 23
 Digital Root 5
Name
Short name  6 thousand 890 

Full name  six thousand eight hundred ninety 
Notation
Scientific notation  6.89 × 10^{3} 

Engineering notation  6.89 × 10^{3} 
Prime Factorization of 6890
Prime Factorization 2 × 5 × 13 × 53
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  6890  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 6,890 is 2 × 5 × 13 × 53. Since it has a total of 4 prime factors, 6,890 is a composite number.
Divisors of 6890
16 divisors
τ(n)  Total Divisors  16  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  13608  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  6718  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  850.5  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  83.006023877789  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  8.1011169900059  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 6,890 can be divided by 16 positive divisors (out of which 8 are even, and 8 are odd). The sum of these divisors (counting 6,890) is 13,608, the average is 85,0.5.
Other Arithmetic Functions (n = 6890)
φ(n)  Euler Totient  2496  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  156  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 888  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  32  The number of ways n can be represented as the sum of 2 squares 
There are 2,496 positive integers (less than 6,890) that are coprime with 6,890. And there are approximately 888 prime numbers less than or equal to 6,890.
Divisibility of 6890
m  2  3  4  5  6  7  8  9 

n mod m  0  2  2  0  2  2  2  5 
The number 6,890 is divisible by 2 and 5.
Classification of 6890
By Arithmetic functions
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Base conversion (6890)
Base  System  Value 

2  Binary  1101011101010 
3  Ternary  100110012 
4  Quaternary  1223222 
5  Quinary  210030 
6  Senary  51522 
8  Octal  15352 
10  Decimal  6890 
12  Duodecimal  3ba2 
16  Hexadecimal  1aea 
20  Vigesimal  h4a 
36  Base36  5be 
Basic calculations (n = 6890)
Multiplication
n×yn×2  13780 

n×3  20670 
n×4  27560 
n×5  34450 
Division
n÷yn÷2  3445.000 

n÷3  2296.666 
n÷4  1722.500 
n÷5  1378.000 
Exponentiation
n^{y}n^{2}  47472100 

n^{3}  327082769000 
n^{4}  2253600278410000 
n^{5}  15527305918244900000 
Nth Root
^{y}√n^{2}√n  83.006023877789 

^{3}√n  19.028581176624 
^{4}√n  9.1107641763898 
^{5}√n  5.8565768218176 
6890 as geometric shapes
Circle
Radius = nDiameter  13780 

Circumference  43291.146766467 
Area  149138000.61048 
Sphere
Radius = nVolume  1370081098941.6 

Surface area  596552002.44192 
Circumference  43291.146766467 
Square
Length = nPerimeter  27560 

Area  47472100 
Diagonal  9743.9314447506 
Cube
Length = nSurface area  284832600 

Volume  327082769000 
Space diagonal  11933.83006415 
Equilateral Triangle
Length = nPerimeter  20670 

Area  20556022.285498 
Altitude  5966.9150320748 
Triangular Pyramid
Length = nSurface area  82224089.14199 

Volume  38547073994.862 
Height  5625.661442592 
Cryptographic Hash Functions
md5  4f7b884f2445ef08da9bbc77b028722c 

sha1  4198e3768829bfe141c4ad2b42f324a6ad9ef8fc 
sha256  00cc75b3c354bd864d646cc1a790268c33916bd2a32b78b502151640596f7702 
sha512  eb80b6b88ad58eef70b914b65226693fb9aaa2c663f6050ce7d0d7a5fb9eb515fbafbc50d816b19daabb44fe5d1288bb26657c9a44a8042f4cadcffff2d7bdcd 
ripemd160  f7f05a561f6dc054681176691e8653c156137d08 