1998727740 is an even 10-digits composite number following 1998727739
and preceding 1998727741. In scientific notation, it is written as 1.998727740 × 10^9.
The sum of its digits is 54. It has a total of 7 prime factors and 72 positive divisors.
There are 500367360 positive integers (up to 1998727740) that are relatively prime to 1998727740.
Prime Factorization
2 × 2 × 3 × 3 × 85 × 641 × 1019
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
333121290 |
Product of the distinct prime numbers |
The prime factorization of 1998727740 is 2 × 2 × 3 × 3 × 85 × 641 × 1019.
Since it has a total of 7 prime factors.
1, 2, 3, 4, 6, 9, 12, 18, 36, 85, 170, 255, 340, 510, 641, 765, 1019, 1020, 1282, 1530, 1923, 2038, 2564, 3057, 3060, 3846, 4076, 5769, 6114, 7692, 9171, 11538, 12228, 18342, 23076, 36684, 54485, 86615, 108970, 163455, 173230, 217940, 259845, 326910, 346460, 490365, 519690, 653179, 653820, 779535, 980730, 1039380, 1306358, 1559070, 1959537, 1961460, 2612716, 3118140, 3919074, 5878611, 7838148, 11757222, 23514444, 55520215, 111040430, 166560645, 222080860, 333121290, 499681935, 666242580, 999363870, 1998727740
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 |
-1998727739 |
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 1998727740 can be divided by 72 positive divisors.
The sum of these divisors (counting 1998727740) is 1, the average is 0.013888888888889.