Compare 1919 vs 1928
| Property | 1919 | 1928 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 4 |
| Prime factorization | 191 × 1011 | 23 × 2411 |
| Prime factorization | 19 × 101 | 2 × 2 × 2 × 241 |
| Divisors count | 4 | 8 |
| Divisors | 1, 19, 101, 1919 | 1, 2, 4, 8, 241, 482, 964, 1928 |
| Number of properties | 1 | 0 |
| Semiprimes | 551st | |
| Roman numberals | MCMXIX | MCMXXVIII |
| Base 2 | 111011111112 | 111100010002 |
| Base 3 | 21220023 | 21221023 |
| Base 4 | 1313334 | 1320204 |
| Base 5 | 301345 | 302035 |
| Base 6 | 125156 | 125326 |
| Base 7 | 54117 | 54237 |
| Base 8 | 35778 | 36108 |
| Base 9 | 25629 | 25729 |
| Base 10 | 191910 | 192810 |
| Base 11 | 149511 | 14a311 |
| Base 12 | 113b12 | 114812 |
| Base 13 | b4813 | b5413 |
| Base 14 | 9b114 | 9ba14 |
| Base 15 | 87e15 | 88815 |
| Base 16 | 77f16 | 78816 |