218398 (number)
218,398 (two hundred eighteen thousand three hundred ninetyeight) is an even sixdigits composite number following 218397 and preceding 218399. In scientific notation, it is written as 2.18398 × 10^{5}. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 109,198 positive integers (up to 218398) that are relatively prime to 218398.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 6
 Sum of Digits 31
 Digital Root 4
Name
Short name  218 thousand 398 

Full name  two hundred eighteen thousand three hundred ninetyeight 
Notation
Scientific notation  2.18398 × 10^{5} 

Engineering notation  218.398 × 10^{3} 
Prime Factorization of 218398
Prime Factorization 2 × 109199
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  2  Total number of prime factors 
rad(n)  Radical  218398  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 218,398 is 2 × 109199. Since it has a total of 2 prime factors, 218,398 is a composite number.
Divisors of 218398
4 divisors
τ(n)  Total Divisors  4  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  327600  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  109202  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  81900  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  467.33071801456  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  2.6666422466422  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 218,398 can be divided by 4 positive divisors (out of which 2 are even, and 2 are odd). The sum of these divisors (counting 218,398) is 327,600, the average is 81,900.
Other Arithmetic Functions (n = 218398)
φ(n)  Euler Totient  109198  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  109198  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 19432  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 109,198 positive integers (less than 218,398) that are coprime with 218,398. And there are approximately 19,432 prime numbers less than or equal to 218,398.
Divisibility of 218398
m  2  3  4  5  6  7  8  9 

n mod m  0  1  2  3  4  5  6  4 
The number 218,398 is divisible by 2.
Classification of 218398
By Arithmetic functions
 Arithmetic
 Semiprime
 Deficient
Expressible via specific sums
 Polite
 Nonhypotenuse
By Powers
 Square Free
Base conversion (218398)
Base  System  Value 

2  Binary  110101010100011110 
3  Ternary  102002120211 
4  Quaternary  311110132 
5  Quinary  23442043 
6  Senary  4403034 
8  Octal  652436 
10  Decimal  218398 
12  Duodecimal  a647a 
16  Hexadecimal  3551e 
20  Vigesimal  175ji 
36  Base36  4oim 
Basic calculations (n = 218398)
Multiplication
n×yn×2  436796 

n×3  655194 
n×4  873592 
n×5  1091990 
Division
n÷yn÷2  109199.000 

n÷3  72799.333 
n÷4  54599.500 
n÷5  43679.600 
Exponentiation
n^{y}n^{2}  47697686404 

n^{3}  10417079315260792 
n^{4}  2275069288294326451216 
n^{5}  496870582424904308292671968 
Nth Root
^{y}√n^{2}√n  467.33071801456 

^{3}√n  60.22122039357 
^{4}√n  21.617833333028 
^{5}√n  11.69094806911 
218398 as geometric shapes
Circle
Radius = nDiameter  436796 

Circumference  1372235.1047174 
Area  149846701200.04 
Sphere
Radius = nVolume  4.3634959798247E+16 

Surface area  599386804800.14 
Circumference  1372235.1047174 
Square
Length = nPerimeter  873592 

Area  47697686404 
Diagonal  308861.41359516 
Cube
Length = nSurface area  286186118424 

Volume  10417079315260792 
Space diagonal  378276.43227143 
Equilateral Triangle
Length = nPerimeter  655194 

Area  20653704063.804 
Altitude  189138.21613571 
Triangular Pyramid
Length = nSurface area  82614816255.215 

Volume  1.2276645706632E+15 
Height  178321.22028145 
Cryptographic Hash Functions
md5  d21a216f3e2fbf4ad3eec93defe9cab8 

sha1  6841b4e98e364af3c6b0a59d662d4396d9b80adf 
sha256  0cbfe421591b27afcdaf6551ee3f222a6f7ab9eba9bab5ae5183f6f64cd2a648 
sha512  48c7f74a15fd73d0c123b98b70dff3f3741fa1558bf60cdd525991c8e7ff28ec77d93d06151939227c394aec10e60bbc6950f445b80d2380c94856d469bf13f5 
ripemd160  f3438d91ee621ad8334e186e3404ee7fd4077a65 