21030144 is an even 8-digits composite number following 21030143
and preceding 21030145. In scientific notation, it is written as 2.1030144 × 10^7.
The sum of its digits is 15. It has a total of 11 prime factors and 72 positive divisors.
There are 6924288 positive integers (up to 21030144) that are relatively prime to 21030144.
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 197 × 139
Composite number
| ω |
Distinct Factors |
4 |
Total number of distinct prime factors |
| Ω |
Total Factors |
11 |
Total number of prime factors |
| rad |
Radical |
164298 |
Product of the distinct prime numbers |
The prime factorization of 21030144 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 197 × 139.
Since it has a total of 11 prime factors.
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 139, 192, 197, 256, 278, 384, 394, 417, 556, 591, 768, 788, 834, 1112, 1182, 1576, 1668, 2224, 2364, 3152, 3336, 4448, 4728, 6304, 6672, 8896, 9456, 12608, 13344, 17792, 18912, 25216, 26688, 27383, 35584, 37824, 50432, 53376, 54766, 75648, 82149, 106752, 109532, 151296, 164298, 219064, 328596, 438128, 657192, 876256, 1314384, 1752512, 2628768, 3505024, 5257536, 7010048, 10515072, 21030144
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 |
-21030143 |
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 21030144 can be divided by 72 positive divisors.
The sum of these divisors (counting 21030144) is 1, the average is 0.013888888888889.