2156865840 is an even 10-digits composite number following 2156865839
and preceding 2156865841. In scientific notation, it is written as 2.156865840 × 10^9.
The sum of its digits is 45. It has a total of 8 prime factors and 80 positive divisors.
There are 569825280 positive integers (up to 2156865840) that are relatively prime to 2156865840.
Prime Factorization
2 × 2 × 2 × 2 × 5 × 27 × 9161 × 109
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
8 |
Total number of prime factors |
| rad |
Radical |
269608230 |
Product of the distinct prime numbers |
The prime factorization of 2156865840 is 2 × 2 × 2 × 2 × 5 × 27 × 9161 × 109.
Since it has a total of 8 prime factors.
1, 2, 4, 5, 8, 10, 16, 20, 27, 40, 54, 80, 108, 109, 135, 216, 218, 270, 432, 436, 540, 545, 872, 1080, 1090, 1744, 2160, 2180, 2943, 4360, 5886, 8720, 9161, 11772, 14715, 18322, 23544, 29430, 36644, 45805, 47088, 58860, 73288, 91610, 117720, 146576, 183220, 235440, 247347, 366440, 494694, 732880, 989388, 998549, 1236735, 1978776, 1997098, 2473470, 3957552, 3994196, 4946940, 4992745, 7988392, 9893880, 9985490, 15976784, 19787760, 19970980, 26960823, 39941960, 53921646, 79883920, 107843292, 134804115, 215686584, 269608230, 431373168, 539216460, 1078432920, 2156865840
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 |
-2156865839 |
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 2156865840 can be divided by 80 positive divisors.
The sum of these divisors (counting 2156865840) is 1, the average is 0.0125.