1728771891 is an odd 10-digits composite number following 1728771890
and preceding 1728771892. In scientific notation, it is written as 1.728771891 × 10^9.
The sum of its digits is 51. It has a total of 7 prime factors and 72 positive divisors.
There are 886485600 positive integers (up to 1728771891) that are relatively prime to 1728771891.
Prime Factorization
3 × 7 × 7 × 11 × 11 × 83 × 1171
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
22451583 |
Product of the distinct prime numbers |
The prime factorization of 1728771891 is 3 × 7 × 7 × 11 × 11 × 83 × 1171.
Since it has a total of 7 prime factors.
1, 3, 7, 11, 21, 33, 49, 77, 83, 121, 147, 231, 249, 363, 539, 581, 847, 913, 1171, 1617, 1743, 2541, 2739, 3513, 4067, 5929, 6391, 8197, 10043, 12201, 12881, 17787, 19173, 24591, 30129, 38643, 44737, 57379, 70301, 90167, 97193, 134211, 141691, 172137, 210903, 270501, 291579, 425073, 492107, 631169, 680351, 991837, 1069123, 1476321, 1893507, 2041053, 2975511, 3207369, 4762457, 6942859, 7483861, 11760353, 14287371, 20828577, 22451583, 35281059, 52387027, 82322471, 157161081, 246967413, 576257297, 1728771891
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 |
-1728771890 |
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 1728771891 can be divided by 72 positive divisors.
The sum of these divisors (counting 1728771891) is 1, the average is 0.013888888888889.