Compare 640007 vs 641371
| Property | 640007 | 641371 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6400071 | 6413711 |
| Prime factorization | 640007 | 641371 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640007 | 1, 641371 |
| Number of properties | 5 | 4 |
| Additive primes | 20350th | |
| Chen primes | 20377th | 20411th |
| Isolated primes | 40897th | |
| Primes | 52075th | 52174th |
| Twin primes (1st member) | 5632nd | |
| Ulam primes | 3817th | 3825th |
| Roman numberals | ||
| Base 2 | 100111000100000001112 | 100111001001010110112 |
| Base 3 | 10121112202223 | 10121202101113 |
| Base 4 | 21301000134 | 21302111234 |
| Base 5 | 1304400125 | 1310104415 |
| Base 6 | 214145556 | 214251516 |
| Base 7 | 53036247 | 53106137 |
| Base 8 | 23420078 | 23445338 |
| Base 9 | 11748289 | 11767149 |
| Base 10 | 64000710 | 64137110 |
| Base 11 | 3a793511 | 3a896511 |
| Base 12 | 26a45b12 | 26b1b712 |
| Base 13 | 19540413 | 195c1313 |
| Base 14 | 12934b14 | 129a4314 |
| Base 15 | c997215 | ca08115 |
| Base 16 | 9c40716 | 9c95b16 |