205156980 is an even 9-digits composite number following 205156979
and preceding 205156981. In scientific notation, it is written as 2.05156980 × 10^8.
The sum of its digits is 36. It has a total of 7 prime factors and 72 positive divisors.
There are 46892736 positive integers (up to 205156980) that are relatively prime to 205156980.
Prime Factorization
2 × 2 × 5 × 7 × 3 × 3 × 162823
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
34192830 |
Product of the distinct prime numbers |
The prime factorization of 205156980 is 2 × 2 × 5 × 7 × 3 × 3 × 162823.
Since it has a total of 7 prime factors.
1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 162823, 325646, 488469, 651292, 814115, 976938, 1139761, 1465407, 1628230, 1953876, 2279522, 2442345, 2930814, 3256460, 3419283, 4559044, 4884690, 5698805, 5861628, 6838566, 7327035, 9769380, 10257849, 11397610, 13677132, 14654070, 17096415, 20515698, 22795220, 29308140, 34192830, 41031396, 51289245, 68385660, 102578490, 205156980
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 |
-205156979 |
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 205156980 can be divided by 72 positive divisors.
The sum of these divisors (counting 205156980) is 1, the average is 0.013888888888889.