Compare 551 vs 556
| Property | 551 | 556 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 191 × 291 | 22 × 1391 |
| Prime factorization | 19 × 29 | 2 × 2 × 139 |
| Divisors count | 4 | 6 |
| Divisors | 1, 19, 29, 551 | 1, 2, 4, 139, 278, 556 |
| Number of properties | 1 | 0 |
| Semiprimes | 172nd | |
| Roman numberals | DLI | DLVI |
| Base 2 | 10001001112 | 10001011002 |
| Base 3 | 2021023 | 2021213 |
| Base 4 | 202134 | 202304 |
| Base 5 | 42015 | 42115 |
| Base 6 | 23156 | 23246 |
| Base 7 | 14157 | 14237 |
| Base 8 | 10478 | 10548 |
| Base 9 | 6729 | 6779 |
| Base 10 | 55110 | 55610 |
| Base 11 | 46111 | 46611 |
| Base 12 | 39b12 | 3a412 |
| Base 13 | 33513 | 33a13 |
| Base 14 | 2b514 | 2ba14 |
| Base 15 | 26b15 | 27115 |
| Base 16 | 22716 | 22c16 |