Compare 640249 vs 640279
| Property | 640249 | 640279 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6402491 | 6402791 |
| Prime factorization | 640249 | 640279 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640249 | 1, 640279 |
| Number of properties | 3 | 2 |
| Isolated primes | 40831st | |
| Primes | 52098th | 52102nd |
| Twin primes (2nd member) | 5635th | |
| Ulam primes | 3819th | |
| Roman numberals | ||
| Base 2 | 100111000100111110012 | 100111000101000101112 |
| Base 3 | 10121120202213 | 10121120220013 |
| Base 4 | 21301033214 | 21301101134 |
| Base 5 | 1304414445 | 1304421045 |
| Base 6 | 214200416 | 214201316 |
| Base 7 | 53044217 | 53044637 |
| Base 8 | 23423718 | 23424278 |
| Base 9 | 11752279 | 11752619 |
| Base 10 | 64024910 | 64027910 |
| Base 11 | 3a803511 | 3a806211 |
| Base 12 | 26a62112 | 26a64712 |
| Base 13 | 19555c13 | 19558313 |
| Base 14 | 12948114 | 1294a314 |
| Base 15 | c9a8415 | c9aa415 |
| Base 16 | 9c4f916 | 9c51716 |