Compare 640421 vs 640793
| Property | 640421 | 640793 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6404211 | 6407931 |
| Prime factorization | 640421 | 640793 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640421 | 1, 640793 |
| Number of properties | 3 | 5 |
| Additive primes | 20365th | 20376th |
| Chen primes | 20400th | |
| Isolated primes | 40838th | 40859th |
| Primes | 52109th | 52134th |
| Sophie germain primes | 5312th | |
| Roman numberals | ||
| Base 2 | 100111000101101001012 | 100111000111000110012 |
| Base 3 | 10121121110223 | 10121200000023 |
| Base 4 | 21301122114 | 21301301214 |
| Base 5 | 1304431415 | 1310011335 |
| Base 6 | 214205256 | 214223456 |
| Base 7 | 53050557 | 53061267 |
| Base 8 | 23426458 | 23434318 |
| Base 9 | 11754389 | 11760029 |
| Base 10 | 64042110 | 64079310 |
| Base 11 | 3a818111 | 3a848a11 |
| Base 12 | 26a74512 | 26a9b512 |
| Base 13 | 19566213 | 19588a13 |
| Base 14 | 12956514 | 12974d14 |
| Base 15 | c9b4b15 | c9ce815 |
| Base 16 | 9c5a516 | 9c71916 |