640012912 is an even 9-digits composite number following 640012911
and preceding 640012913. In scientific notation, it is written as 6.40012912 × 10^8.
The sum of its digits is 25. It has a total of 8 prime factors and 80 positive divisors.
There are 243895680 positive integers (up to 640012912) that are relatively prime to 640012912.
Prime Factorization
2 × 2 × 2 × 2 × 77 × 7 × 47 × 1579
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
8 |
Total number of prime factors |
| rad |
Radical |
80001614 |
Product of the distinct prime numbers |
The prime factorization of 640012912 is 2 × 2 × 2 × 2 × 77 × 7 × 47 × 1579.
Since it has a total of 8 prime factors.
1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 77, 94, 112, 154, 188, 308, 329, 376, 539, 616, 658, 752, 1078, 1232, 1316, 1579, 2156, 2632, 3158, 3619, 4312, 5264, 6316, 7238, 8624, 11053, 12632, 14476, 22106, 25264, 25333, 28952, 44212, 50666, 57904, 74213, 88424, 101332, 121583, 148426, 176848, 202664, 243166, 296852, 405328, 486332, 519491, 593704, 851081, 972664, 1038982, 1187408, 1702162, 1945328, 2077964, 3404324, 4155928, 5714401, 6808648, 8311856, 11428802, 13617296, 22857604, 40000807, 45715208, 80001614, 91430416, 160003228, 320006456, 640012912
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 |
-640012911 |
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 640012912 can be divided by 80 positive divisors.
The sum of these divisors (counting 640012912) is 1, the average is 0.0125.