Compare 1919 vs 1939
| Property | 1919 | 1939 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 191 × 1011 | 71 × 2771 |
| Prime factorization | 19 × 101 | 7 × 277 |
| Divisors count | 4 | 4 |
| Divisors | 1, 19, 101, 1919 | 1, 7, 277, 1939 |
| Number of properties | 1 | 1 |
| Semiprimes | 551st | 558th |
| Roman numberals | MCMXIX | MCMXXXIX |
| Base 2 | 111011111112 | 111100100112 |
| Base 3 | 21220023 | 21222113 |
| Base 4 | 1313334 | 1321034 |
| Base 5 | 301345 | 302245 |
| Base 6 | 125156 | 125516 |
| Base 7 | 54117 | 54407 |
| Base 8 | 35778 | 36238 |
| Base 9 | 25629 | 25849 |
| Base 10 | 191910 | 193910 |
| Base 11 | 149511 | 150311 |
| Base 12 | 113b12 | 115712 |
| Base 13 | b4813 | b6213 |
| Base 14 | 9b114 | 9c714 |
| Base 15 | 87e15 | 89415 |
| Base 16 | 77f16 | 79316 |