2912787988 is an even 10-digits composite number following 2912787987
and preceding 2912787989. In scientific notation, it is written as 2.912787988 × 10^9.
The sum of its digits is 61. It has a total of 7 prime factors and 72 positive divisors.
There are 1259871360 positive integers (up to 2912787988) that are relatively prime to 2912787988.
Prime Factorization
2 × 2 × 11 × 11 × 23 × 233 × 1123
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
132399454 |
Product of the distinct prime numbers |
The prime factorization of 2912787988 is 2 × 2 × 11 × 11 × 23 × 233 × 1123.
Since it has a total of 7 prime factors.
1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 233, 242, 253, 466, 484, 506, 932, 1012, 1123, 2246, 2563, 2783, 4492, 5126, 5359, 5566, 10252, 10718, 11132, 12353, 21436, 24706, 25829, 28193, 49412, 51658, 56386, 58949, 103316, 112772, 117898, 135883, 235796, 261659, 271766, 284119, 523318, 543532, 568238, 648439, 1046636, 1136476, 1296878, 2593756, 2878249, 3125309, 5756498, 6018157, 6250618, 11512996, 12036314, 12501236, 24072628, 31660739, 63321478, 66199727, 126642956, 132399454, 264798908, 728196997, 1456393994, 2912787988
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 |
-2912787987 |
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 2912787988 can be divided by 72 positive divisors.
The sum of these divisors (counting 2912787988) is 1, the average is 0.013888888888889.