218725 (number)
218,725 (two hundred eighteen thousand seven hundred twentyfive) is an odd sixdigits composite number following 218724 and preceding 218726. In scientific notation, it is written as 2.18725 × 10^{5}. The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors. There are 161,280 positive integers (up to 218725) that are relatively prime to 218725.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 6
 Sum of Digits 25
 Digital Root 7
Name
Short name  218 thousand 725 

Full name  two hundred eighteen thousand seven hundred twentyfive 
Notation
Scientific notation  2.18725 × 10^{5} 

Engineering notation  218.725 × 10^{3} 
Prime Factorization of 218725
Prime Factorization 5^{2} × 13 × 673
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  4  Total number of prime factors 
rad(n)  Radical  43745  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  0  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 218,725 is 5^{2} × 13 × 673. Since it has a total of 4 prime factors, 218,725 is a composite number.
Divisors of 218725
12 divisors
τ(n)  Total Divisors  12  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  292516  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  73791  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  24376.333  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  467.6804464589  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  8.972842511179  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 218,725 can be divided by 12 positive divisors (out of which 0 are even, and 12 are odd). The sum of these divisors (counting 218,725) is 292,516, the average is 243,76.,333.
Other Arithmetic Functions (n = 218725)
φ(n)  Euler Totient  161280  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  3360  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 19459  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  48  The number of ways n can be represented as the sum of 2 squares 
There are 161,280 positive integers (less than 218,725) that are coprime with 218,725. And there are approximately 19,459 prime numbers less than or equal to 218,725.
Divisibility of 218725
m  2  3  4  5  6  7  8  9 

n mod m  1  1  1  0  1  3  5  7 
The number 218,725 is divisible by 5.
Classification of 218725
By Arithmetic functions
 Deficient
Expressible via specific sums
 Polite
Base conversion (218725)
Base  System  Value 

2  Binary  110101011001100101 
3  Ternary  102010000221 
4  Quaternary  311121211 
5  Quinary  23444400 
6  Senary  4404341 
8  Octal  653145 
10  Decimal  218725 
12  Duodecimal  a66b1 
16  Hexadecimal  35665 
20  Vigesimal  176g5 
36  Base36  4orp 
Basic calculations (n = 218725)
Multiplication
n×yn×2  437450 

n×3  656175 
n×4  874900 
n×5  1093625 
Division
n÷yn÷2  109362.500 

n÷3  72908.333 
n÷4  54681.250 
n÷5  43745.000 
Exponentiation
n^{y}n^{2}  47840625625 

n^{3}  10463940839828125 
n^{4}  2288725460191406640625 
n^{5}  500601476280365417470703125 
Nth Root
^{y}√n^{2}√n  467.6804464589 

^{3}√n  60.251261143347 
^{4}√n  21.625920707773 
^{5}√n  11.694446867167 
218725 as geometric shapes
Circle
Radius = nDiameter  437450 

Circumference  1374289.7063129 
Area  150295758006.64 
Sphere
Radius = nVolume  4.3831252893336E+16 

Surface area  601183032026.56 
Circumference  1374289.7063129 
Square
Length = nPerimeter  874900 

Area  47840625625 
Diagonal  309323.86143006 
Cube
Length = nSurface area  287043753750 

Volume  10463940839828125 
Space diagonal  378842.8128855 
Equilateral Triangle
Length = nPerimeter  656175 

Area  20715598562.095 
Altitude  189421.40644275 
Triangular Pyramid
Length = nSurface area  82862394248.382 

Volume  1.2331872542962E+15 
Height  178588.21466342 
Cryptographic Hash Functions
md5  e2cd07c1800e163bb8267dc8d469c044 

sha1  baa28f4c6ed986b9e0e434efe902a81e56ce8c36 
sha256  9853c748f018bdbf3c29379deb7aafcd4b89767df8e38fa2ffcb01f2695584fa 
sha512  aa4b71ddaf769811c7d9a3a3570fc23e732fcdcb6cb2b12eca4f3b7886cf0cc089e339b540b8c7a457236cd093c9dcd9f6aa5b3f551e0aca4ae5f36d05322551 
ripemd160  d31b82db7ceec4bf9902c50f9364c602a2440783 