Compare 381 vs 387
| Property | 381 | 387 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 1271 | 32 × 431 |
| Prime factorization | 3 × 127 | 3 × 3 × 43 |
| Divisors count | 4 | 6 |
| Divisors | 1, 3, 127, 381 | 1, 3, 9, 43, 129, 387 |
| Number of properties | 1 | 0 |
| Semiprimes | 119th | |
| Roman numberals | CCCLXXXI | CCCLXXXVII |
| Base 2 | 1011111012 | 1100000112 |
| Base 3 | 1120103 | 1121003 |
| Base 4 | 113314 | 120034 |
| Base 5 | 30115 | 30225 |
| Base 6 | 14336 | 14436 |
| Base 7 | 10537 | 10627 |
| Base 8 | 5758 | 6038 |
| Base 9 | 4639 | 4709 |
| Base 10 | 38110 | 38710 |
| Base 11 | 31711 | 32211 |
| Base 12 | 27912 | 28312 |
| Base 13 | 23413 | 23a13 |
| Base 14 | 1d314 | 1d914 |
| Base 15 | 1a615 | 1ac15 |
| Base 16 | 17d16 | 18316 |