261566720 is an even 9-digits composite number following 261566719
and preceding 261566721. In scientific notation, it is written as 2.61566720 × 10^8.
The sum of its digits is 35. It has a total of 11 prime factors and 72 positive divisors.
There are 103956480 positive integers (up to 261566720) that are relatively prime to 261566720.
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 181 × 1129
Composite number
| ω |
Distinct Factors |
4 |
Total number of distinct prime factors |
| Ω |
Total Factors |
11 |
Total number of prime factors |
| rad |
Radical |
2043490 |
Product of the distinct prime numbers |
The prime factorization of 261566720 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 181 × 1129.
Since it has a total of 11 prime factors.
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 320, 362, 640, 724, 905, 1129, 1280, 1448, 1810, 2258, 2896, 3620, 4516, 5645, 5792, 7240, 9032, 11290, 11584, 14480, 18064, 22580, 23168, 28960, 36128, 45160, 46336, 57920, 72256, 90320, 115840, 144512, 180640, 204349, 231680, 289024, 361280, 408698, 722560, 817396, 1021745, 1445120, 1634792, 2043490, 3269584, 4086980, 6539168, 8173960, 13078336, 16347920, 26156672, 32695840, 52313344, 65391680, 130783360, 261566720
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 |
-261566719 |
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 261566720 can be divided by 72 positive divisors.
The sum of these divisors (counting 261566720) is 1, the average is 0.013888888888889.