Compare 145 vs 156
| Property | 145 | 156 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 51 × 291 | 22 × 31 × 131 |
| Prime factorization | 5 × 29 | 2 × 2 × 3 × 13 |
| Divisors count | 4 | 12 |
| Divisors | 1, 5, 29, 145 | 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156 |
| Number of properties | 1 | 0 |
| Semiprimes | 49th | |
| Roman numberals | CXLV | CLVI |
| Base 2 | 100100012 | 100111002 |
| Base 3 | 121013 | 122103 |
| Base 4 | 21014 | 21304 |
| Base 5 | 10405 | 11115 |
| Base 6 | 4016 | 4206 |
| Base 7 | 2657 | 3127 |
| Base 8 | 2218 | 2348 |
| Base 9 | 1719 | 1839 |
| Base 10 | 14510 | 15610 |
| Base 11 | 12211 | 13211 |
| Base 12 | 10112 | 11012 |
| Base 13 | b213 | c013 |
| Base 14 | a514 | b214 |
| Base 15 | 9a15 | a615 |
| Base 16 | 9116 | 9c16 |