128217856 is an even 9-digits composite number following 128217855
and preceding 128217857. In scientific notation, it is written as 1.28217856 × 10^8.
The sum of its digits is 40. It has a total of 11 prime factors and 72 positive divisors.
There are 58085376 positive integers (up to 128217856) that are relatively prime to 128217856.
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 59 × 653
Composite number
| ω |
Distinct Factors |
4 |
Total number of distinct prime factors |
| Ω |
Total Factors |
11 |
Total number of prime factors |
| rad |
Radical |
1001702 |
Product of the distinct prime numbers |
The prime factorization of 128217856 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 59 × 653.
Since it has a total of 11 prime factors.
1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 64, 104, 118, 128, 208, 236, 256, 416, 472, 653, 767, 832, 944, 1306, 1534, 1664, 1888, 2612, 3068, 3328, 3776, 5224, 6136, 7552, 8489, 10448, 12272, 15104, 16978, 20896, 24544, 33956, 38527, 41792, 49088, 67912, 77054, 83584, 98176, 135824, 154108, 167168, 196352, 271648, 308216, 500851, 543296, 616432, 1001702, 1086592, 1232864, 2003404, 2173184, 2465728, 4006808, 4931456, 8013616, 9862912, 16027232, 32054464, 64108928, 128217856
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 |
-128217855 |
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 128217856 can be divided by 72 positive divisors.
The sum of these divisors (counting 128217856) is 1, the average is 0.013888888888889.