Compare 1951 vs 2011
| Property | 1951 | 2011 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19511 | 20111 |
| Prime factorization | 1951 | 2011 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1951 | 1, 2011 |
| Number of properties | 3 | 4 |
| Cuban primes 1 | 14th | |
| Harmonic primes | 113th | |
| Isolated primes | 184th | |
| Primes | 297th | 305th |
| Sexy primes (1st member) | 130th | |
| Twin primes (2nd member) | 60th | |
| Roman numberals | MCMLI | MMXI |
| Base 2 | 111100111112 | 111110110112 |
| Base 3 | 22000213 | 22021113 |
| Base 4 | 1321334 | 1331234 |
| Base 5 | 303015 | 310215 |
| Base 6 | 130116 | 131516 |
| Base 7 | 54557 | 56027 |
| Base 8 | 36378 | 37338 |
| Base 9 | 26079 | 26749 |
| Base 10 | 195110 | 201110 |
| Base 11 | 151411 | 156911 |
| Base 12 | 116712 | 11b712 |
| Base 13 | b7113 | bb913 |
| Base 14 | 9d514 | a3914 |
| Base 15 | 8a115 | 8e115 |
| Base 16 | 79f16 | 7db16 |