Compare 1931 vs 1949
| Property | 1931 | 1949 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 19311 | 19491 |
| Prime factorization | 1931 | 1949 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1931 | 1, 1949 |
| Number of properties | 5 | 8 |
| Additive primes | 156th | |
| Chen primes | 182nd | 183rd |
| Emirps | 95th | |
| Harmonic primes | 108th | 110th |
| Long primes | 115th | |
| Primes | 294th | 296th |
| Pythagorean primes | 144th | |
| Sophie germain primes | 59th | |
| Twin primes (1st member) | 59th | 60th |
| Roman numberals | MCMXXXI | MCMXLIX |
| Base 2 | 111100010112 | 111100111012 |
| Base 3 | 21221123 | 22000123 |
| Base 4 | 1320234 | 1321314 |
| Base 5 | 302115 | 302445 |
| Base 6 | 125356 | 130056 |
| Base 7 | 54267 | 54537 |
| Base 8 | 36138 | 36358 |
| Base 9 | 25759 | 26059 |
| Base 10 | 193110 | 194910 |
| Base 11 | 14a611 | 151211 |
| Base 12 | 114b12 | 116512 |
| Base 13 | b5713 | b6c13 |
| Base 14 | 9bd14 | 9d314 |
| Base 15 | 88b15 | 89e15 |
| Base 16 | 78b16 | 79d16 |