Compare 1231 vs 1249
| Property | 1231 | 1249 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 12311 | 12491 |
| Prime factorization | 1231 | 1249 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1231 | 1, 1249 |
| Number of properties | 6 | 5 |
| Additive primes | 108th | |
| Emirps | 56th | 58th |
| Isolated primes | 121st | |
| Lucky primes | 52nd | 53rd |
| Primes | 202nd | 204th |
| Pythagorean primes | 101st | |
| Sexy primes (1st member) | 88th | |
| Twin primes (2nd member) | 42nd | |
| Roman numberals | MCCXXXI | MCCXLIX |
| Base 2 | 100110011112 | 100111000012 |
| Base 3 | 12001213 | 12010213 |
| Base 4 | 1030334 | 1032014 |
| Base 5 | 144115 | 144445 |
| Base 6 | 54116 | 54416 |
| Base 7 | 34067 | 34337 |
| Base 8 | 23178 | 23418 |
| Base 9 | 16179 | 16379 |
| Base 10 | 123110 | 124910 |
| Base 11 | a1a11 | a3611 |
| Base 12 | 86712 | 88112 |
| Base 13 | 73913 | 75113 |
| Base 14 | 63d14 | 65314 |
| Base 15 | 57115 | 58415 |
| Base 16 | 4cf16 | 4e116 |