1618883820 is an even 10-digits composite number following 1618883819
and preceding 1618883821. In scientific notation, it is written as 1.618883820 × 10^9.
The sum of its digits is 45. It has a total of 7 prime factors and 72 positive divisors.
There are 392103936 positive integers (up to 1618883820) that are relatively prime to 1618883820.
Prime Factorization
2 × 2 × 9 × 9 × 5 × 493 × 2027
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
7 |
Total number of prime factors |
| rad |
Radical |
89937990 |
Product of the distinct prime numbers |
The prime factorization of 1618883820 is 2 × 2 × 9 × 9 × 5 × 493 × 2027.
Since it has a total of 7 prime factors.
1, 2, 4, 5, 9, 10, 18, 20, 36, 45, 81, 90, 162, 180, 324, 405, 493, 810, 986, 1620, 1972, 2027, 2465, 4054, 4437, 4930, 8108, 8874, 9860, 10135, 17748, 18243, 20270, 22185, 36486, 39933, 40540, 44370, 72972, 79866, 88740, 91215, 159732, 164187, 182430, 199665, 328374, 364860, 399330, 656748, 798660, 820935, 999311, 1641870, 1998622, 3283740, 3997244, 4996555, 8993799, 9993110, 17987598, 19986220, 35975196, 44968995, 80944191, 89937990, 161888382, 179875980, 323776764, 404720955, 809441910, 1618883820
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 |
-1618883819 |
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 1618883820 can be divided by 72 positive divisors.
The sum of these divisors (counting 1618883820) is 1, the average is 0.013888888888889.