Compare 1231 vs 1242
| Property | 1231 | 1242 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 5 |
| Prime factorization | 12311 | 21 × 33 × 231 |
| Prime factorization | 1231 | 2 × 3 × 3 × 3 × 23 |
| Divisors count | 2 | 16 |
| Divisors | 1, 1231 | 1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242 |
| Number of properties | 6 | 0 |
| Additive primes | 108th | |
| Emirps | 56th | |
| Lucky primes | 52nd | |
| Primes | 202nd | |
| Sexy primes (1st member) | 88th | |
| Twin primes (2nd member) | 42nd | |
| Roman numberals | MCCXXXI | MCCXLII |
| Base 2 | 100110011112 | 100110110102 |
| Base 3 | 12001213 | 12010003 |
| Base 4 | 1030334 | 1031224 |
| Base 5 | 144115 | 144325 |
| Base 6 | 54116 | 54306 |
| Base 7 | 34067 | 34237 |
| Base 8 | 23178 | 23328 |
| Base 9 | 16179 | 16309 |
| Base 10 | 123110 | 124210 |
| Base 11 | a1a11 | a2a11 |
| Base 12 | 86712 | 87612 |
| Base 13 | 73913 | 74713 |
| Base 14 | 63d14 | 64a14 |
| Base 15 | 57115 | 57c15 |
| Base 16 | 4cf16 | 4da16 |