Compare 28 vs 58
| Property | 28 | 58 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 22 × 71 | 21 × 291 |
| Prime factorization | 2 × 2 × 7 | 2 × 29 |
| Divisors count | 6 | 4 |
| Divisors | 1, 2, 4, 7, 14, 28 | 1, 2, 29, 58 |
| Number of properties | 0 | 1 |
| Semiprimes | 21st | |
| Roman numberals | XXVIII | LVIII |
| Base 2 | 111002 | 1110102 |
| Base 3 | 10013 | 20113 |
| Base 4 | 1304 | 3224 |
| Base 5 | 1035 | 2135 |
| Base 6 | 446 | 1346 |
| Base 7 | 407 | 1127 |
| Base 8 | 348 | 728 |
| Base 9 | 319 | 649 |
| Base 10 | 2810 | 5810 |
| Base 11 | 2611 | 5311 |
| Base 12 | 2412 | 4a12 |
| Base 13 | 2213 | 4613 |
| Base 14 | 2014 | 4214 |
| Base 15 | 1d15 | 3d15 |
| Base 16 | 1c16 | 3a16 |