Compare 1919 vs 1954
| Property | 1919 | 1954 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 191 × 1011 | 21 × 9771 |
| Prime factorization | 19 × 101 | 2 × 977 |
| Divisors count | 4 | 4 |
| Divisors | 1, 19, 101, 1919 | 1, 2, 977, 1954 |
| Number of properties | 1 | 1 |
| Semiprimes | 551st | 563rd |
| Roman numberals | MCMXIX | MCMLIV |
| Base 2 | 111011111112 | 111101000102 |
| Base 3 | 21220023 | 22001013 |
| Base 4 | 1313334 | 1322024 |
| Base 5 | 301345 | 303045 |
| Base 6 | 125156 | 130146 |
| Base 7 | 54117 | 54617 |
| Base 8 | 35778 | 36428 |
| Base 9 | 25629 | 26119 |
| Base 10 | 191910 | 195410 |
| Base 11 | 149511 | 151711 |
| Base 12 | 113b12 | 116a12 |
| Base 13 | b4813 | b7413 |
| Base 14 | 9b114 | 9d814 |
| Base 15 | 87e15 | 8a415 |
| Base 16 | 77f16 | 7a216 |