Compare 18 vs 57
Property | 18 | 57 |
---|---|---|
Type | composite number | semiprime |
Unique factors | 2 | 2 |
Total factors | 3 | 2 |
Prime factorization | 21 × 32 | 31 × 191 |
Prime factorization | 2 × 3 × 3 | 3 × 19 |
Divisors count | 6 | 4 |
Divisors | 1, 2, 3, 6, 9, 18 | 1, 3, 19, 57 |
Number of properties | 0 | 1 |
Semiprimes | 20th | |
Roman numberals | XVIII | LVII |
Base 2 | 100102 | 1110012 |
Base 3 | 2003 | 20103 |
Base 4 | 1024 | 3214 |
Base 5 | 335 | 2125 |
Base 6 | 306 | 1336 |
Base 7 | 247 | 1117 |
Base 8 | 228 | 718 |
Base 9 | 209 | 639 |
Base 10 | 1810 | 5710 |
Base 11 | 1711 | 5211 |
Base 12 | 1612 | 4912 |
Base 13 | 1513 | 4513 |
Base 14 | 1414 | 4114 |
Base 15 | 1315 | 3c15 |
Base 16 | 1216 | 3916 |