Compare 1949 vs 1979
| Property | 1949 | 1979 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19491 | 19791 |
| Prime factorization | 1949 | 1979 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1949 | 1, 1979 |
| Number of properties | 8 | 6 |
| Additive primes | 156th | |
| Chen primes | 183rd | 184th |
| Emirps | 95th | 96th |
| Harmonic primes | 110th | |
| Isolated primes | 180th | |
| Long primes | 115th | 116th |
| Primes | 296th | 299th |
| Pythagorean primes | 144th | |
| Sexy primes (2nd member) | 126th | |
| Twin primes (1st member) | 60th | |
| Roman numberals | MCMXLIX | MCMLXXIX |
| Base 2 | 111100111012 | 111101110112 |
| Base 3 | 22000123 | 22010223 |
| Base 4 | 1321314 | 1323234 |
| Base 5 | 302445 | 304045 |
| Base 6 | 130056 | 130556 |
| Base 7 | 54537 | 55257 |
| Base 8 | 36358 | 36738 |
| Base 9 | 26059 | 26389 |
| Base 10 | 194910 | 197910 |
| Base 11 | 151211 | 153a11 |
| Base 12 | 116512 | 118b12 |
| Base 13 | b6c13 | b9313 |
| Base 14 | 9d314 | a1514 |
| Base 15 | 89e15 | 8be15 |
| Base 16 | 79d16 | 7bb16 |