Compare 145 vs 178
| Property | 145 | 178 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 51 × 291 | 21 × 891 |
| Prime factorization | 5 × 29 | 2 × 89 |
| Divisors count | 4 | 4 |
| Divisors | 1, 5, 29, 145 | 1, 2, 89, 178 |
| Number of properties | 1 | 1 |
| Semiprimes | 49th | 58th |
| Roman numberals | CXLV | CLXXVIII |
| Base 2 | 100100012 | 101100102 |
| Base 3 | 121013 | 201213 |
| Base 4 | 21014 | 23024 |
| Base 5 | 10405 | 12035 |
| Base 6 | 4016 | 4546 |
| Base 7 | 2657 | 3437 |
| Base 8 | 2218 | 2628 |
| Base 9 | 1719 | 2179 |
| Base 10 | 14510 | 17810 |
| Base 11 | 12211 | 15211 |
| Base 12 | 10112 | 12a12 |
| Base 13 | b213 | 10913 |
| Base 14 | a514 | ca14 |
| Base 15 | 9a15 | bd15 |
| Base 16 | 9116 | b216 |