1487996820 is an even 10-digits composite number following 1487996819
and preceding 1487996821. In scientific notation, it is written as 1.487996820 × 10^9.
The sum of its digits is 54. It has a total of 7 prime factors and 72 positive divisors.
There are 396276480 positive integers (up to 1487996820) that are relatively prime to 1487996820.
Prime Factorization
2 × 2 × 5 × 3 × 3 × 821 × 10069
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
247999470 |
Product of the distinct prime numbers |
The prime factorization of 1487996820 is 2 × 2 × 5 × 3 × 3 × 821 × 10069.
Since it has a total of 7 prime factors.
1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 821, 1642, 2463, 3284, 4105, 4926, 7389, 8210, 9852, 10069, 12315, 14778, 16420, 20138, 24630, 29556, 30207, 36945, 40276, 49260, 50345, 60414, 73890, 90621, 100690, 120828, 147780, 151035, 181242, 201380, 302070, 362484, 453105, 604140, 906210, 1812420, 8266649, 16533298, 24799947, 33066596, 41333245, 49599894, 74399841, 82666490, 99199788, 123999735, 148799682, 165332980, 247999470, 297599364, 371999205, 495998940, 743998410, 1487996820
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 |
-1487996819 |
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 1487996820 can be divided by 72 positive divisors.
The sum of these divisors (counting 1487996820) is 1, the average is 0.013888888888889.