291214209 is an odd 9-digits composite number following 291214208
and preceding 291214210. In scientific notation, it is written as 2.91214209 × 10^8.
The sum of its digits is 30. It has a total of 7 prime factors and 72 positive divisors.
There are 157872000 positive integers (up to 291214209) that are relatively prime to 291214209.
Prime Factorization
3 × 13 × 13 × 11 × 11 × 47 × 101
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
2036463 |
Product of the distinct prime numbers |
The prime factorization of 291214209 is 3 × 13 × 13 × 11 × 11 × 47 × 101.
Since it has a total of 7 prime factors.
1, 3, 11, 13, 33, 39, 47, 101, 121, 141, 143, 169, 303, 363, 429, 507, 517, 611, 1111, 1313, 1551, 1573, 1833, 1859, 3333, 3939, 4719, 4747, 5577, 5687, 6721, 7943, 12221, 14241, 14443, 17061, 17069, 20163, 20449, 23829, 36663, 43329, 51207, 52217, 61347, 61711, 73931, 87373, 156651, 158873, 185133, 187759, 221793, 262119, 476619, 563277, 574387, 678821, 802243, 961103, 1723161, 2036463, 2065349, 2406729, 2883309, 6196047, 7467031, 8824673, 22401093, 26474019, 97071403, 291214209
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 |
-291214208 |
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 291214209 can be divided by 72 positive divisors.
The sum of these divisors (counting 291214209) is 1, the average is 0.013888888888889.