Compare 245 vs 254
| Property | 245 | 254 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 51 × 72 | 21 × 1271 |
| Prime factorization | 5 × 7 × 7 | 2 × 127 |
| Divisors count | 6 | 4 |
| Divisors | 1, 5, 7, 35, 49, 245 | 1, 2, 127, 254 |
| Number of properties | 0 | 1 |
| Semiprimes | 82nd | |
| Roman numberals | CCXLV | CCLIV |
| Base 2 | 111101012 | 111111102 |
| Base 3 | 1000023 | 1001023 |
| Base 4 | 33114 | 33324 |
| Base 5 | 14405 | 20045 |
| Base 6 | 10456 | 11026 |
| Base 7 | 5007 | 5127 |
| Base 8 | 3658 | 3768 |
| Base 9 | 3029 | 3129 |
| Base 10 | 24510 | 25410 |
| Base 11 | 20311 | 21111 |
| Base 12 | 18512 | 19212 |
| Base 13 | 15b13 | 16713 |
| Base 14 | 13714 | 14214 |
| Base 15 | 11515 | 11e15 |
| Base 16 | f516 | fe16 |