Compare 1218 vs 1229
| Property | 1218 | 1229 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 21 × 31 × 71 × 291 | 12291 |
| Prime factorization | 2 × 3 × 7 × 29 | 1229 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 406, 609, 1218 | 1, 1229 |
| Number of properties | 0 | 9 |
| Chen primes | 132nd | |
| Emirps | 55th | |
| Long primes | 78th | |
| Primes | 201st | |
| Pythagorean primes | 99th | |
| Sexy primes (2nd member) | 87th | |
| Sexy prime triplets (3rd member) | 33rd | |
| Sophie germain primes | 44th | |
| Twin primes (1st member) | 42nd | |
| Roman numberals | MCCXVIII | MCCXXIX |
| Base 2 | 100110000102 | 100110011012 |
| Base 3 | 12000103 | 12001123 |
| Base 4 | 1030024 | 1030314 |
| Base 5 | 143335 | 144045 |
| Base 6 | 53506 | 54056 |
| Base 7 | 33607 | 34047 |
| Base 8 | 23028 | 23158 |
| Base 9 | 16039 | 16159 |
| Base 10 | 121810 | 122910 |
| Base 11 | a0811 | a1811 |
| Base 12 | 85612 | 86512 |
| Base 13 | 72913 | 73713 |
| Base 14 | 63014 | 63b14 |
| Base 15 | 56315 | 56e15 |
| Base 16 | 4c216 | 4cd16 |