Compare 639631 vs 640457
| Property | 639631 | 640457 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6396311 | 6404571 |
| Prime factorization | 639631 | 640457 |
| Divisors count | 2 | 2 |
| Divisors | 1, 639631 | 1, 640457 |
| Number of properties | 3 | 4 |
| Chen primes | 20391st | |
| Isolated primes | 40792nd | 40839th |
| Primes | 52047th | 52110th |
| Sexy primes (1st member) | 11279th | 11290th |
| Roman numberals | ||
| Base 2 | 100111000010100011112 | 100111000101110010012 |
| Base 3 | 10121111020013 | 10121121121223 |
| Base 4 | 21300220334 | 21301130214 |
| Base 5 | 1304320115 | 1304433125 |
| Base 6 | 214131316 | 214210256 |
| Base 7 | 53025467 | 53051367 |
| Base 8 | 23412178 | 23427118 |
| Base 9 | 11743619 | 11754789 |
| Base 10 | 63963110 | 64045710 |
| Base 11 | 3a762311 | 3a820411 |
| Base 12 | 26a1a712 | 26a77512 |
| Base 13 | 1951a513 | 19568c13 |
| Base 14 | 12915d14 | 12958d14 |
| Base 15 | c97c115 | c9b7215 |
| Base 16 | 9c28f16 | 9c5c916 |