Compare 1831 vs 2011
| Property | 1831 | 2011 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 18311 | 20111 |
| Prime factorization | 1831 | 2011 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1831 | 1, 2011 |
| Number of properties | 6 | 4 |
| Additive primes | 150th | |
| Emirps | 88th | |
| Harmonic primes | 101st | 113th |
| Isolated primes | 171st | 184th |
| Lucky primes | 67th | |
| Primes | 282nd | 305th |
| Sexy primes (1st member) | 130th | |
| Roman numberals | MDCCCXXXI | MMXI |
| Base 2 | 111001001112 | 111110110112 |
| Base 3 | 21112113 | 22021113 |
| Base 4 | 1302134 | 1331234 |
| Base 5 | 243115 | 310215 |
| Base 6 | 122516 | 131516 |
| Base 7 | 52247 | 56027 |
| Base 8 | 34478 | 37338 |
| Base 9 | 24549 | 26749 |
| Base 10 | 183110 | 201110 |
| Base 11 | 141511 | 156911 |
| Base 12 | 108712 | 11b712 |
| Base 13 | aab13 | bb913 |
| Base 14 | 94b14 | a3914 |
| Base 15 | 82115 | 8e115 |
| Base 16 | 72716 | 7db16 |