Compare 645009 vs 645013
| Property | 645009 | 645013 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 671 × 32091 | 6450131 |
| Prime factorization | 3 × 67 × 3209 | 645013 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 67, 201, 3209, 9627, 215003, 645009 | 1, 645013 |
| Number of properties | 0 | 4 |
| Additive primes | 20503rd | |
| Primes | 52448th | |
| Sexy primes (1st member) | 11360th | |
| Twin primes (2nd member) | 5670th | |
| Roman numberals | ||
| Base 2 | 100111010111100100012 | 100111010111100101012 |
| Base 3 | 10122022100203 | 10122022101013 |
| Base 4 | 21311321014 | 21311321114 |
| Base 5 | 1311200145 | 1311200235 |
| Base 6 | 214540536 | 214541016 |
| Base 7 | 53243317 | 53243357 |
| Base 8 | 23536218 | 23536258 |
| Base 9 | 11827069 | 11827119 |
| Base 10 | 64500910 | 64501310 |
| Base 11 | 40067211 | 40067611 |
| Base 12 | 27132912 | 27133112 |
| Base 13 | 19778113 | 19778513 |
| Base 14 | 12b0c114 | 12b0c514 |
| Base 15 | cb1a915 | cb1ad15 |
| Base 16 | 9d79116 | 9d79516 |