721800912 is an even 9-digits composite number following 721800911
and preceding 721800913. In scientific notation, it is written as 7.21800912 × 10^8.
The sum of its digits is 30. It has a total of 8 prime factors and 80 positive divisors.
There are 205441920 positive integers (up to 721800912) that are relatively prime to 721800912.
Prime Factorization
2 × 2 × 2 × 2 × 7 × 3 × 271 × 7927
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
8 |
Total number of prime factors |
| rad |
Radical |
90225114 |
Product of the distinct prime numbers |
The prime factorization of 721800912 is 2 × 2 × 2 × 2 × 7 × 3 × 271 × 7927.
Since it has a total of 8 prime factors.
1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 271, 336, 542, 813, 1084, 1626, 1897, 2168, 3252, 3794, 4336, 5691, 6504, 7588, 7927, 11382, 13008, 15176, 15854, 22764, 23781, 30352, 31708, 45528, 47562, 55489, 63416, 91056, 95124, 110978, 126832, 166467, 190248, 221956, 332934, 380496, 443912, 665868, 887824, 1331736, 2148217, 2663472, 4296434, 6444651, 8592868, 12889302, 15037519, 17185736, 25778604, 30075038, 34371472, 45112557, 51557208, 60150076, 90225114, 103114416, 120300152, 180450228, 240600304, 360900456, 721800912
80 divisors
| τ |
Total Divisors |
80 |
Total number of the positive divisors of n |
| σ |
Sum of Divisors |
1 |
Sum of all the positive divisors of n |
| s |
Aliquot Sum |
-721800911 |
Sum of the proper positive divisors of n |
| A |
Arithmetic Mean |
0.0125 |
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 |
80 |
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors |
The number 721800912 can be divided by 80 positive divisors.
The sum of these divisors (counting 721800912) is 1, the average is 0.0125.