1640388720 is an even 10-digits composite number following 1640388719
and preceding 1640388721. In scientific notation, it is written as 1.640388720 × 10^9.
The sum of its digits is 39. It has a total of 8 prime factors and 80 positive divisors.
There are 436810752 positive integers (up to 1640388720) that are relatively prime to 1640388720.
Prime Factorization
2 × 2 × 2 × 2 × 3 × 5 × 757 × 9029
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
8 |
Total number of prime factors |
| rad |
Radical |
205048590 |
Product of the distinct prime numbers |
The prime factorization of 1640388720 is 2 × 2 × 2 × 2 × 3 × 5 × 757 × 9029.
Since it has a total of 8 prime factors.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 757, 1514, 2271, 3028, 3785, 4542, 6056, 7570, 9029, 9084, 11355, 12112, 15140, 18058, 18168, 22710, 27087, 30280, 36116, 36336, 45145, 45420, 54174, 60560, 72232, 90290, 90840, 108348, 135435, 144464, 180580, 181680, 216696, 270870, 361160, 433392, 541740, 722320, 1083480, 2166960, 6834953, 13669906, 20504859, 27339812, 34174765, 41009718, 54679624, 68349530, 82019436, 102524295, 109359248, 136699060, 164038872, 205048590, 273398120, 328077744, 410097180, 546796240, 820194360, 1640388720
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 |
-1640388719 |
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 1640388720 can be divided by 80 positive divisors.
The sum of these divisors (counting 1640388720) is 1, the average is 0.0125.