639776916 is an even 9-digits composite number following 639776915
and preceding 639776917. In scientific notation, it is written as 6.39776916 × 10^8.
The sum of its digits is 54. It has a total of 7 prime factors and 72 positive divisors.
There are 206530560 positive integers (up to 639776916) that are relatively prime to 639776916.
Prime Factorization
2 × 2 × 3 × 3 × 241 × 37 × 1993
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
106629486 |
Product of the distinct prime numbers |
The prime factorization of 639776916 is 2 × 2 × 3 × 3 × 241 × 37 × 1993.
Since it has a total of 7 prime factors.
1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 241, 333, 444, 482, 666, 723, 964, 1332, 1446, 1993, 2169, 2892, 3986, 4338, 5979, 7972, 8676, 8917, 11958, 17834, 17937, 23916, 26751, 35668, 35874, 53502, 71748, 73741, 80253, 107004, 147482, 160506, 221223, 294964, 321012, 442446, 480313, 663669, 884892, 960626, 1327338, 1440939, 1921252, 2654676, 2881878, 4322817, 5763756, 8645634, 17291268, 17771581, 35543162, 53314743, 71086324, 106629486, 159944229, 213258972, 319888458, 639776916
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 |
-639776915 |
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 639776916 can be divided by 72 positive divisors.
The sum of these divisors (counting 639776916) is 1, the average is 0.013888888888889.