218216 (number)
218,216 (two hundred eighteen thousand two hundred sixteen) is an even sixdigits composite number following 218215 and preceding 218217. In scientific notation, it is written as 2.18216 × 10^{5}. The sum of its digits is 20. It has a total of 4 prime factors and 8 positive divisors. There are 109,104 positive integers (up to 218216) that are relatively prime to 218216.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 6
 Sum of Digits 20
 Digital Root 2
Name
Short name  218 thousand 216 

Full name  two hundred eighteen thousand two hundred sixteen 
Notation
Scientific notation  2.18216 × 10^{5} 

Engineering notation  218.216 × 10^{3} 
Prime Factorization of 218216
Prime Factorization 2^{3} × 27277
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  4  Total number of prime factors 
rad(n)  Radical  54554  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 218,216 is 2^{3} × 27277. Since it has a total of 4 prime factors, 218,216 is a composite number.
Divisors of 218216
8 divisors
τ(n)  Total Divisors  8  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  409170  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  190954  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  51146.25  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  467.13595451431  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  4.2665102524623  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 218,216 can be divided by 8 positive divisors (out of which 6 are even, and 2 are odd). The sum of these divisors (counting 218,216) is 409,170, the average is 51,146,.25.
Other Arithmetic Functions (n = 218216)
φ(n)  Euler Totient  109104  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  27276  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 109,104 positive integers (less than 218,216) that are coprime with 218,216. And there are approximately 19,417 prime numbers less than or equal to 218,216.
Divisibility of 218216
m  2  3  4  5  6  7  8  9 

n mod m  0  2  0  1  2  5  0  2 
The number 218,216 is divisible by 2, 4 and 8.
Classification of 218216
By Arithmetic functions
 Refactorable
 Deficient
Expressible via specific sums
 Polite
Base conversion (218216)
Base  System  Value 

2  Binary  110101010001101000 
3  Ternary  102002100002 
4  Quaternary  311101220 
5  Quinary  23440331 
6  Senary  4402132 
8  Octal  652150 
10  Decimal  218216 
12  Duodecimal  a6348 
16  Hexadecimal  35468 
20  Vigesimal  175ag 
36  Base36  4odk 
Basic calculations (n = 218216)
Multiplication
n×yn×2  436432 

n×3  654648 
n×4  872864 
n×5  1091080 
Division
n÷yn÷2  109108.000 

n÷3  72738.666 
n÷4  54554.000 
n÷5  43643.200 
Exponentiation
n^{y}n^{2}  47618222656 

n^{3}  10391058075101696 
n^{4}  2267495128916391694336 
n^{5}  494803717051619329971224576 
Nth Root
^{y}√n^{2}√n  467.13595451431 

^{3}√n  60.204487474668 
^{4}√n  21.613328168385 
^{5}√n  11.688998910088 
218216 as geometric shapes
Circle
Radius = nDiameter  436432 

Circumference  1371091.5649915 
Area  149597058473.09 
Sphere
Radius = nVolume  4.3525962282353E+16 

Surface area  598388233892.37 
Circumference  1371091.5649915 
Square
Length = nPerimeter  872864 

Area  47618222656 
Diagonal  308604.02672681 
Cube
Length = nSurface area  285709335936 

Volume  10391058075101696 
Space diagonal  377961.19902445 
Equilateral Triangle
Length = nPerimeter  654648 

Area  20619295251.58 
Altitude  188980.59951223 
Triangular Pyramid
Length = nSurface area  82477181006.319 

Volume  1.2245979381013E+15 
Height  178172.61790372 
Cryptographic Hash Functions
md5  663db94ec9daff9aa8fcf51f60c0b184 

sha1  47d5a5fc6f8a32766b8ee367b7efbf4bb590ddc9 
sha256  498c9523de10a91fcd31e7bfd84de39555edd452e0b6e75efefb1df1f1edfe7f 
sha512  515c0c6027a99163888a0b722bea33d0e5c555906dd092bc9216f208fc926ec1f5a1b01c7b50d249e30c2dc7a415295b7cd60e8b908c4f16b369329d64c79318 
ripemd160  1e34f516fb54680e2ac8f4eb07e3d4f765581057 