Compare 642121 vs 642199
| Property | 642121 | 642199 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6421211 | 6421991 |
| Prime factorization | 642121 | 642199 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642121 | 1, 642199 |
| Number of properties | 2 | 5 |
| Additive primes | 20416th | |
| Happy primes | 7435th | |
| Isolated primes | 40935th | |
| Primes | 52230th | 52237th |
| Super primes | 5340th | |
| Twin primes (2nd member) | 5650th | |
| Roman numberals | ||
| Base 2 | 100111001100010010012 | 100111001100100101112 |
| Base 3 | 10121212110213 | 10121212210113 |
| Base 4 | 21303010214 | 21303021134 |
| Base 5 | 1310214415 | 1310222445 |
| Base 6 | 214324416 | 214330516 |
| Base 7 | 53130347 | 53132057 |
| Base 8 | 23461118 | 23462278 |
| Base 9 | 11777379 | 11778349 |
| Base 10 | 64212110 | 64219910 |
| Base 11 | 3a948711 | 3a954811 |
| Base 12 | 26b72112 | 26b78712 |
| Base 13 | 19636c13 | 1963cc13 |
| Base 14 | 12a01b14 | 12a07514 |
| Base 15 | ca3d115 | ca43415 |
| Base 16 | 9cc4916 | 9cc9716 |