1640665089 is an odd 10-digits composite number following 1640665088
and preceding 1640665090. In scientific notation, it is written as 1.640665089 × 10^9.
The sum of its digits is 45. It has a total of 7 prime factors and 72 positive divisors.
There are 908107200 positive integers (up to 1640665089) that are relatively prime to 1640665089.
Prime Factorization
3 × 3 × 61 × 7 × 7 × 71 × 859
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
78126909 |
Product of the distinct prime numbers |
The prime factorization of 1640665089 is 3 × 3 × 61 × 7 × 7 × 71 × 859.
Since it has a total of 7 prime factors.
1, 3, 7, 9, 21, 49, 61, 63, 71, 147, 183, 213, 427, 441, 497, 549, 639, 859, 1281, 1491, 2577, 2989, 3479, 3843, 4331, 4473, 6013, 7731, 8967, 10437, 12993, 18039, 26901, 30317, 31311, 38979, 42091, 52399, 54117, 60989, 90951, 126273, 157197, 182967, 212219, 272853, 366793, 378819, 426923, 471591, 548901, 636657, 1100379, 1280769, 1909971, 2567551, 2988461, 3301137, 3720329, 3842307, 7702653, 8965383, 11160987, 23107959, 26042303, 26896149, 33482961, 78126909, 182296121, 234380727, 546888363, 1640665089
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 |
-1640665088 |
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 1640665089 can be divided by 72 positive divisors.
The sum of these divisors (counting 1640665089) is 1, the average is 0.013888888888889.