80811900 is an even 8-digits composite number following 80811899
and preceding 80811901. In scientific notation, it is written as 8.0811900 × 10^7.
The sum of its digits is 27. It has a total of 7 prime factors and 72 positive divisors.
There are 19889280 positive integers (up to 80811900) that are relatively prime to 80811900.
Prime Factorization
2 × 2 × 9 × 13 × 5 × 5 × 6907
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
8081190 |
Product of the distinct prime numbers |
The prime factorization of 80811900 is 2 × 2 × 9 × 13 × 5 × 5 × 6907.
Since it has a total of 7 prime factors.
1, 2, 4, 5, 9, 10, 13, 18, 20, 25, 26, 36, 45, 50, 52, 65, 90, 100, 117, 130, 180, 225, 234, 260, 325, 450, 468, 585, 650, 900, 1170, 1300, 2340, 2925, 5850, 6907, 11700, 13814, 27628, 34535, 62163, 69070, 89791, 124326, 138140, 172675, 179582, 248652, 310815, 345350, 359164, 448955, 621630, 690700, 808119, 897910, 1243260, 1554075, 1616238, 1795820, 2244775, 3108150, 3232476, 4040595, 4489550, 6216300, 8081190, 8979100, 16162380, 20202975, 40405950, 80811900
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 |
-80811899 |
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 80811900 can be divided by 72 positive divisors.
The sum of these divisors (counting 80811900) is 1, the average is 0.013888888888889.