Compare 640785 vs 640793
| Property | 640785 | 640793 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 51 × 427191 | 6407931 |
| Prime factorization | 3 × 5 × 42719 | 640793 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 5, 15, 42719, 128157, 213595, 640785 | 1, 640793 |
| Number of properties | 0 | 5 |
| Additive primes | 20376th | |
| Chen primes | 20400th | |
| Isolated primes | 40859th | |
| Primes | 52134th | |
| Sophie germain primes | 5312th | |
| Roman numberals | ||
| Base 2 | 100111000111000100012 | 100111000111000110012 |
| Base 3 | 10121122222103 | 10121200000023 |
| Base 4 | 21301301014 | 21301301214 |
| Base 5 | 1310011205 | 1310011335 |
| Base 6 | 214223336 | 214223456 |
| Base 7 | 53061157 | 53061267 |
| Base 8 | 23434218 | 23434318 |
| Base 9 | 11758839 | 11760029 |
| Base 10 | 64078510 | 64079310 |
| Base 11 | 3a848211 | 3a848a11 |
| Base 12 | 26a9a912 | 26a9b512 |
| Base 13 | 19588213 | 19588a13 |
| Base 14 | 12974514 | 12974d14 |
| Base 15 | c9ce015 | c9ce815 |
| Base 16 | 9c71116 | 9c71916 |