640009968 is an even 9-digits composite number following 640009967
and preceding 640009969. In scientific notation, it is written as 6.40009968 × 10^8.
The sum of its digits is 42. It has a total of 8 prime factors and 80 positive divisors.
There are 194418432 positive integers (up to 640009968) that are relatively prime to 640009968.
Prime Factorization
2 × 2 × 2 × 2 × 3 × 13 × 79 × 12983
Composite number
| ω |
Distinct Factors |
5 |
Total number of distinct prime factors |
| Ω |
Total Factors |
8 |
Total number of prime factors |
| rad |
Radical |
80001246 |
Product of the distinct prime numbers |
The prime factorization of 640009968 is 2 × 2 × 2 × 2 × 3 × 13 × 79 × 12983.
Since it has a total of 8 prime factors.
1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 79, 104, 156, 158, 208, 237, 312, 316, 474, 624, 632, 948, 1027, 1264, 1896, 2054, 3081, 3792, 4108, 6162, 8216, 12324, 12983, 16432, 24648, 25966, 38949, 49296, 51932, 77898, 103864, 155796, 168779, 207728, 311592, 337558, 506337, 623184, 675116, 1012674, 1025657, 1350232, 2025348, 2051314, 2700464, 3076971, 4050696, 4102628, 6153942, 8101392, 8205256, 12307884, 13333541, 16410512, 24615768, 26667082, 40000623, 49231536, 53334164, 80001246, 106668328, 160002492, 213336656, 320004984, 640009968
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 |
-640009967 |
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 640009968 can be divided by 80 positive divisors.
The sum of these divisors (counting 640009968) is 1, the average is 0.0125.