209702988 is an even 9-digits composite number following 209702987
and preceding 209702989. In scientific notation, it is written as 2.09702988 × 10^8.
The sum of its digits is 45. It has a total of 7 prime factors and 72 positive divisors.
There are 63158400 positive integers (up to 209702988) that are relatively prime to 209702988.
Prime Factorization
2 × 2 × 3 × 3 × 11 × 173 × 3061
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
34950498 |
Product of the distinct prime numbers |
The prime factorization of 209702988 is 2 × 2 × 3 × 3 × 11 × 173 × 3061.
Since it has a total of 7 prime factors.
1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 173, 198, 346, 396, 519, 692, 1038, 1557, 1903, 2076, 3061, 3114, 3806, 5709, 6122, 6228, 7612, 9183, 11418, 12244, 17127, 18366, 22836, 27549, 33671, 34254, 36732, 55098, 67342, 68508, 101013, 110196, 134684, 202026, 303039, 404052, 529553, 606078, 1059106, 1212156, 1588659, 2118212, 3177318, 4765977, 5825083, 6354636, 9531954, 11650166, 17475249, 19063908, 23300332, 34950498, 52425747, 69900996, 104851494, 209702988
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 |
-209702987 |
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 209702988 can be divided by 72 positive divisors.
The sum of these divisors (counting 209702988) is 1, the average is 0.013888888888889.