218465 (number)
218,465 (two hundred eighteen thousand four hundred sixtyfive) is an odd sixdigits composite number following 218464 and preceding 218466. In scientific notation, it is written as 2.18465 × 10^{5}. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 161,280 positive integers (up to 218465) that are relatively prime to 218465.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 6
 Sum of Digits 26
 Digital Root 8
Name
Short name  218 thousand 465 

Full name  two hundred eighteen thousand four hundred sixtyfive 
Notation
Scientific notation  2.18465 × 10^{5} 

Engineering notation  218.465 × 10^{3} 
Prime Factorization of 218465
Prime Factorization 5 × 13 × 3361
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  3  Total number of prime factors 
rad(n)  Radical  218465  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 218,465 is 5 × 13 × 3361. Since it has a total of 3 prime factors, 218,465 is a composite number.
Divisors of 218465
8 divisors
τ(n)  Total Divisors  8  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  282408  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  63943  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  35301  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  467.40239622835  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  6.1886348828645  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 218,465 can be divided by 8 positive divisors (out of which 0 are even, and 8 are odd). The sum of these divisors (counting 218,465) is 282,408, the average is 35,301.
Other Arithmetic Functions (n = 218465)
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  ≈ 19437  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 161,280 positive integers (less than 218,465) that are coprime with 218,465. And there are approximately 19,437 prime numbers less than or equal to 218,465.
Divisibility of 218465
m  2  3  4  5  6  7  8  9 

n mod m  1  2  1  0  5  2  1  8 
The number 218,465 is divisible by 5.
Classification of 218465
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
 Sphenic
Base conversion (218465)
Base  System  Value 

2  Binary  110101010101100001 
3  Ternary  102002200022 
4  Quaternary  311111201 
5  Quinary  23442330 
6  Senary  4403225 
8  Octal  652541 
10  Decimal  218465 
12  Duodecimal  a6515 
16  Hexadecimal  35561 
20  Vigesimal  17635 
36  Base36  4okh 
Basic calculations (n = 218465)
Multiplication
n×yn×2  436930 

n×3  655395 
n×4  873860 
n×5  1092325 
Division
n÷yn÷2  109232.500 

n÷3  72821.666 
n÷4  54616.250 
n÷5  43693.000 
Exponentiation
n^{y}n^{2}  47726956225 

n^{3}  10426669491694625 
n^{4}  2277862350503066250625 
n^{5}  497633198402652368442790625 
Nth Root
^{y}√n^{2}√n  467.40239622835 

^{3}√n  60.227377973213 
^{4}√n  21.619491118626 
^{5}√n  11.691665289432 
218465 as geometric shapes
Circle
Radius = nDiameter  436930 

Circumference  1372656.078133 
Area  149938655054.66 
Sphere
Radius = nVolume  4.3675131035356E+16 

Surface area  599754620218.65 
Circumference  1372656.078133 
Square
Length = nPerimeter  873860 

Area  47726956225 
Diagonal  308956.16590384 
Cube
Length = nSurface area  286361737350 

Volume  10426669491694625 
Space diagonal  378392.47967553 
Equilateral Triangle
Length = nPerimeter  655395 

Area  20666378268.079 
Altitude  189196.23983777 
Triangular Pyramid
Length = nSurface area  82665513072.316 

Volume  1.2287947837947E+15 
Height  178375.92555238 
Cryptographic Hash Functions
md5  c11d506978f34afac10bf1926ecbac5e 

sha1  4d9b8f1d17820dde9a99109f663dba7c55646656 
sha256  a0496c6afeebf18b02b7695eece6f4f08bc89059ed18748d6b8c7934b4e8e964 
sha512  671db6dc515a2204aa3e28badf4c7fa4d1520e9f398e5d4c189a39dd8e9501b33924aa80668102cea0f055910f5e52a657628f9894b41875a3a9bf6d8db1446e 
ripemd160  ca046607c911b1f5085abd4942e65a78bce42b45 