218213 (number)
218,213 (two hundred eighteen thousand two hundred thirteen) is an odd sixdigits prime number following 218212 and preceding 218214. In scientific notation, it is written as 2.18213 × 10^{5}. The sum of its digits is 17. It has a total of 1 prime factor and 2 positive divisors. There are 218,212 positive integers (up to 218213) that are relatively prime to 218213.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 6
 Sum of Digits 17
 Digital Root 8
Name
Short name  218 thousand 213 

Full name  two hundred eighteen thousand two hundred thirteen 
Notation
Scientific notation  2.18213 × 10^{5} 

Engineering notation  218.213 × 10^{3} 
Prime Factorization of 218213
Prime Factorization 218213
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  218213  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  12.293226928975  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 218,213 is 218213. Since it has a total of 1 prime factor, 218,213 is a prime number.
Divisors of 218213
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  218214  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  109107  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  467.13274344666  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.9999908346852  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 218,213 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 218,213) is 218,214, the average is 109,107.
Other Arithmetic Functions (n = 218213)
φ(n)  Euler Totient  218212  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  218212  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 19417  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 218,212 positive integers (less than 218,213) that are coprime with 218,213. And there are approximately 19,417 prime numbers less than or equal to 218,213.
Divisibility of 218213
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  3  5  2  5  8 
218,213 is not divisible by any number less than or equal to 9.
Classification of 218213
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Prime Power
 Square Free
Base conversion (218213)
Base  System  Value 

2  Binary  110101010001100101 
3  Ternary  102002022222 
4  Quaternary  311101211 
5  Quinary  23440323 
6  Senary  4402125 
8  Octal  652145 
10  Decimal  218213 
12  Duodecimal  a6345 
16  Hexadecimal  35465 
20  Vigesimal  175ad 
36  Base36  4odh 
Basic calculations (n = 218213)
Multiplication
n×yn×2  436426 

n×3  654639 
n×4  872852 
n×5  1091065 
Division
n÷yn÷2  109106.500 

n÷3  72737.666 
n÷4  54553.250 
n÷5  43642.600 
Exponentiation
n^{y}n^{2}  47616913369 

n^{3}  10390629516989597 
n^{4}  2267370438790850930161 
n^{5}  494769705559867954023222293 
Nth Root
^{y}√n^{2}√n  467.13274344666 

^{3}√n  60.204211579393 
^{4}√n  21.613253883825 
^{5}√n  11.6889667702 
218213 as geometric shapes
Circle
Radius = nDiameter  436426 

Circumference  1371072.7154356 
Area  149592945226.67 
Sphere
Radius = nVolume  4.352416714233E+16 

Surface area  598371780906.69 
Circumference  1371072.7154356 
Square
Length = nPerimeter  872852 

Area  47616913369 
Diagonal  308599.78408612 
Cube
Length = nSurface area  285701480214 

Volume  10390629516989597 
Space diagonal  377956.00287203 
Equilateral Triangle
Length = nPerimeter  654639 

Area  20618728313.678 
Altitude  188978.00143601 
Triangular Pyramid
Length = nSurface area  82474913254.714 

Volume  1.2245474320434E+15 
Height  178170.16841398 
Cryptographic Hash Functions
md5  bd17317e0bf489300aea2c9942b5900d 

sha1  fb4a86fbaec07bbbf0dd7418637be3751278aa70 
sha256  2687b52e8e27b2135ef79b67bdde06bf33396a397809dd792220616be416b4c7 
sha512  ed6fc239c299a892139d08af221702041b6de6feddcf68db4ad2e3838af88699912fa84bcba2ac8a39c139a77c8d7cfc2cac40724c0fa450289732fc2ae2da11 
ripemd160  b5e5044663bc1dc816045a7e6a74d94f0a4f8b6e 