Compare 1831 vs 1973
| Property | 1831 | 1973 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18311 | 19731 |
| Prime factorization | 1831 | 1973 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1831 | 1, 1973 |
| Number of properties | 6 | 7 |
| Additive primes | 150th | |
| Emirps | 88th | |
| Good primes | 61st | |
| Harmonic primes | 101st | 111th |
| Isolated primes | 171st | 179th |
| Lucky primes | 67th | |
| Primes | 282nd | 298th |
| Pythagorean primes | 145th | |
| Sexy primes (1st member) | 126th | |
| Sophie germain primes | 60th | |
| Roman numberals | MDCCCXXXI | MCMLXXIII |
| Base 2 | 111001001112 | 111101101012 |
| Base 3 | 21112113 | 22010023 |
| Base 4 | 1302134 | 1323114 |
| Base 5 | 243115 | 303435 |
| Base 6 | 122516 | 130456 |
| Base 7 | 52247 | 55167 |
| Base 8 | 34478 | 36658 |
| Base 9 | 24549 | 26329 |
| Base 10 | 183110 | 197310 |
| Base 11 | 141511 | 153411 |
| Base 12 | 108712 | 118512 |
| Base 13 | aab13 | b8a13 |
| Base 14 | 94b14 | a0d14 |
| Base 15 | 82115 | 8b815 |
| Base 16 | 72716 | 7b516 |