1912821428 is an even 10-digits composite number following 1912821427
and preceding 1912821429. In scientific notation, it is written as 1.912821428 × 10^9.
The sum of its digits is 38. It has a total of 7 prime factors and 72 positive divisors.
There are 772898112 positive integers (up to 1912821428) that are relatively prime to 1912821428.
Prime Factorization
2 × 2 × 19 × 7 × 7 × 229 × 2243
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
136630102 |
Product of the distinct prime numbers |
The prime factorization of 1912821428 is 2 × 2 × 19 × 7 × 7 × 229 × 2243.
Since it has a total of 7 prime factors.
1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 229, 266, 458, 532, 916, 931, 1603, 1862, 2243, 3206, 3724, 4351, 4486, 6412, 8702, 8972, 11221, 15701, 17404, 22442, 30457, 31402, 42617, 44884, 60914, 62804, 85234, 109907, 121828, 170468, 213199, 219814, 298319, 426398, 439628, 513647, 596638, 852796, 1027294, 1193276, 2054588, 2088233, 3595529, 4176466, 7191058, 8352932, 9759293, 14382116, 19518586, 25168703, 39037172, 50337406, 68315051, 100674812, 136630102, 273260204, 478205357, 956410714, 1912821428
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 |
-1912821427 |
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 1912821428 can be divided by 72 positive divisors.
The sum of these divisors (counting 1912821428) is 1, the average is 0.013888888888889.