641511216 is an even 9-digits composite number following 641511215
and preceding 641511217. In scientific notation, it is written as 6.41511216 × 10^8.
The sum of its digits is 27. It has a total of 8 prime factors and 80 positive divisors.
There are 202549248 positive integers (up to 641511216) that are relatively prime to 641511216.
Prime Factorization
2 × 2 × 2 × 2 × 9 × 23 × 109 × 1777
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
8 |
Total number of prime factors |
| rad |
Radical |
80188902 |
Product of the distinct prime numbers |
The prime factorization of 641511216 is 2 × 2 × 2 × 2 × 9 × 23 × 109 × 1777.
Since it has a total of 8 prime factors.
1, 2, 4, 8, 9, 16, 18, 23, 36, 46, 72, 92, 109, 144, 184, 207, 218, 368, 414, 436, 828, 872, 981, 1656, 1744, 1777, 1962, 2507, 3312, 3554, 3924, 5014, 7108, 7848, 10028, 14216, 15696, 15993, 20056, 22563, 28432, 31986, 40112, 40871, 45126, 63972, 81742, 90252, 127944, 163484, 180504, 193693, 255888, 326968, 361008, 367839, 387386, 653936, 735678, 774772, 1471356, 1549544, 1743237, 2942712, 3099088, 3486474, 4454939, 5885424, 6972948, 8909878, 13945896, 17819756, 27891792, 35639512, 40094451, 71279024, 80188902, 160377804, 320755608, 641511216
80 divisors
| τ |
Total Divisors |
80 |
Total number of the positive divisors of n |
| σ |
Sum of Divisors |
1 |
Sum of all the positive divisors of n |
| s |
Aliquot Sum |
-641511215 |
Sum of the proper positive divisors of n |
| A |
Arithmetic Mean |
0.0125 |
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 |
80 |
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 641511216 can be divided by 80 positive divisors.
The sum of these divisors (counting 641511216) is 1, the average is 0.0125.