Compare 640249 vs 642133
| Property | 640249 | 642133 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6402491 | 6421331 |
| Prime factorization | 640249 | 642133 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640249 | 1, 642133 |
| Number of properties | 3 | 5 |
| Additive primes | 20413th | |
| Isolated primes | 40936th | |
| Lucky primes | 5996th | |
| Primes | 52098th | 52231st |
| Twin primes (2nd member) | 5635th | |
| Ulam primes | 3819th | 3829th |
| Roman numberals | ||
| Base 2 | 100111000100111110012 | 100111001100010101012 |
| Base 3 | 10121120202213 | 10121212112013 |
| Base 4 | 21301033214 | 21303011114 |
| Base 5 | 1304414445 | 1310220135 |
| Base 6 | 214200416 | 214325016 |
| Base 7 | 53044217 | 53130527 |
| Base 8 | 23423718 | 23461258 |
| Base 9 | 11752279 | 11777519 |
| Base 10 | 64024910 | 64213310 |
| Base 11 | 3a803511 | 3a949811 |
| Base 12 | 26a62112 | 26b73112 |
| Base 13 | 19555c13 | 19637b13 |
| Base 14 | 12948114 | 12a02914 |
| Base 15 | c9a8415 | ca3dd15 |
| Base 16 | 9c4f916 | 9cc5516 |