Compare 1285 vs 1288
| Property | 1285 | 1288 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 5 |
| Prime factorization | 51 × 2571 | 23 × 71 × 231 |
| Prime factorization | 5 × 257 | 2 × 2 × 2 × 7 × 23 |
| Divisors count | 4 | 16 |
| Divisors | 1, 5, 257, 1285 | 1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288 |
| Number of properties | 1 | 0 |
| Semiprimes | 378th | |
| Roman numberals | MCCLXXXV | MCCLXXXVIII |
| Base 2 | 101000001012 | 101000010002 |
| Base 3 | 12021213 | 12022013 |
| Base 4 | 1100114 | 1100204 |
| Base 5 | 201205 | 201235 |
| Base 6 | 55416 | 55446 |
| Base 7 | 35147 | 35207 |
| Base 8 | 24058 | 24108 |
| Base 9 | 16779 | 16819 |
| Base 10 | 128510 | 128810 |
| Base 11 | a6911 | a7111 |
| Base 12 | 8b112 | 8b412 |
| Base 13 | 77b13 | 78113 |
| Base 14 | 67b14 | 68014 |
| Base 15 | 5aa15 | 5ad15 |
| Base 16 | 50516 | 50816 |