20785920 is an even 8-digits composite number following 20785919
and preceding 20785921. In scientific notation, it is written as 2.0785920 × 10^7.
The sum of its digits is 33. It has a total of 11 prime factors and 72 positive divisors.
There are 5541888 positive integers (up to 20785920) that are relatively prime to 20785920.
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 3 × 5413
Composite number
| ω |
Distinct Factors |
4 |
Total number of distinct prime factors |
| Ω |
Total Factors |
11 |
Total number of prime factors |
| rad |
Radical |
162390 |
Product of the distinct prime numbers |
The prime factorization of 20785920 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 3 × 5413.
Since it has a total of 11 prime factors.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5413, 10826, 16239, 21652, 27065, 32478, 43304, 54130, 64956, 81195, 86608, 108260, 129912, 162390, 173216, 216520, 259824, 324780, 346432, 433040, 519648, 649560, 692864, 866080, 1039296, 1299120, 1385728, 1732160, 2078592, 2598240, 3464320, 4157184, 5196480, 6928640, 10392960, 20785920
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 |
-20785919 |
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 20785920 can be divided by 72 positive divisors.
The sum of these divisors (counting 20785920) is 1, the average is 0.013888888888889.