218508740 is an even 9-digits composite number following 218508739
and preceding 218508741. In scientific notation, it is written as 2.18508740 × 10^8.
The sum of its digits is 35. It has a total of 7 prime factors and 72 positive divisors.
There are 79130304 positive integers (up to 218508740) that are relatively prime to 218508740.
Prime Factorization
2 × 2 × 5 × 19 × 23 × 23 × 1087
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
4750190 |
Product of the distinct prime numbers |
The prime factorization of 218508740 is 2 × 2 × 5 × 19 × 23 × 23 × 1087.
Since it has a total of 7 prime factors.
1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 529, 874, 1058, 1087, 1748, 2116, 2174, 2185, 2645, 4348, 4370, 5290, 5435, 8740, 10051, 10580, 10870, 20102, 20653, 21740, 25001, 40204, 41306, 50002, 50255, 82612, 100004, 100510, 103265, 125005, 201020, 206530, 250010, 413060, 475019, 500020, 575023, 950038, 1150046, 1900076, 2300092, 2375095, 2875115, 4750190, 5750230, 9500380, 10925437, 11500460, 21850874, 43701748, 54627185, 109254370, 218508740
72 divisors
| τ |
Total Divisors |
72 |
Total number of the positive divisors of n |
| σ |
Sum of Divisors |
1 |
Sum of all the positive divisors of n |
| s |
Aliquot Sum |
-218508739 |
Sum of the proper positive divisors of n |
| A |
Arithmetic Mean |
0.013888888888889 |
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) |
| G |
Geometric Mean |
1 |
Returns the nth root of the product of n divisors |
| H |
Harmonic Mean |
72 |
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 218508740 can be divided by 72 positive divisors.
The sum of these divisors (counting 218508740) is 1, the average is 0.013888888888889.