218245 (number)
218,245 (two hundred eighteen thousand two hundred fortyfive) is an odd sixdigits composite number following 218244 and preceding 218246. In scientific notation, it is written as 2.18245 × 10^{5}. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 174,592 positive integers (up to 218245) that are relatively prime to 218245.
Basic properties
 Is Prime? No
 Number parity Odd
 Number length 6
 Sum of Digits 22
 Digital Root 4
Name
Short name  218 thousand 245 

Full name  two hundred eighteen thousand two hundred fortyfive 
Notation
Scientific notation  2.18245 × 10^{5} 

Engineering notation  218.245 × 10^{3} 
Prime Factorization of 218245
Prime Factorization 5 × 43649
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  218245  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 218,245 is 5 × 43649. Since it has a total of 2 prime factors, 218,245 is a composite number.
Divisors of 218245
4 divisors
τ(n)  Total Divisors  4  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  261900  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  43655  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  65475  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  467.16699369711  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  3.3332569683085  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 218,245 can be divided by 4 positive divisors (out of which 0 are even, and 4 are odd). The sum of these divisors (counting 218,245) is 261,900, the average is 65,475.
Other Arithmetic Functions (n = 218245)
φ(n)  Euler Totient  174592  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  43648  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 19420  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  16  The number of ways n can be represented as the sum of 2 squares 
There are 174,592 positive integers (less than 218,245) that are coprime with 218,245. And there are approximately 19,420 prime numbers less than or equal to 218,245.
Divisibility of 218245
m  2  3  4  5  6  7  8  9 

n mod m  1  1  1  0  1  6  5  4 
The number 218,245 is divisible by 5.
Classification of 218245
By Arithmetic functions
 Arithmetic
 Semiprime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 LucasCarmichael
Base conversion (218245)
Base  System  Value 

2  Binary  110101010010000101 
3  Ternary  102002101011 
4  Quaternary  311102011 
5  Quinary  23440440 
6  Senary  4402221 
8  Octal  652205 
10  Decimal  218245 
12  Duodecimal  a6371 
16  Hexadecimal  35485 
20  Vigesimal  175c5 
36  Base36  4oed 
Basic calculations (n = 218245)
Multiplication
n×yn×2  436490 

n×3  654735 
n×4  872980 
n×5  1091225 
Division
n÷yn÷2  109122.500 

n÷3  72748.333 
n÷4  54561.250 
n÷5  43649.000 
Exponentiation
n^{y}n^{2}  47630880025 

n^{3}  10395201411056125 
n^{4}  2268700731955944000625 
n^{5}  495132591245724998416403125 
Nth Root
^{y}√n^{2}√n  467.16699369711 

^{3}√n  60.207154331972 
^{4}√n  21.614046212986 
^{5}√n  11.689309577455 
218245 as geometric shapes
Circle
Radius = nDiameter  436490 

Circumference  1371273.7773654 
Area  149636822770.56 
Sphere
Radius = nVolume  4.3543317847414E+16 

Surface area  598547291082.23 
Circumference  1371273.7773654 
Square
Length = nPerimeter  872980 

Area  47630880025 
Diagonal  308645.03892012 
Cube
Length = nSurface area  285785280150 

Volume  10395201411056125 
Space diagonal  378011.42849787 
Equilateral Triangle
Length = nPerimeter  654735 

Area  20624776053.129 
Altitude  189005.71424893 
Triangular Pyramid
Length = nSurface area  82499104212.518 

Volume  1.2250862349263E+15 
Height  178196.29630457 
Cryptographic Hash Functions
md5  29c4ac80e8f24193d36ac8c110514c1a 

sha1  b4f99f3aa0a795548f9ccab3c56b1a83f07497f9 
sha256  a04656880010ee4690f16e6679e41f52d08e3aaed13bb5f68e44721e526625bc 
sha512  a3bba10dac6a3b41f02e94df8521db06e8bfaa486ef4825b3271c05e540453ca474d1b1e0d92e056c6f1d08461a04be0c7aefff161a7dedcacf1c5e1fa2b6660 
ripemd160  545bb9e4d2999ca359c1dc995364d41b62d5491d 