Compare 1918 vs 1929
| Property | 1918 | 1929 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 71 × 1371 | 31 × 6431 |
| Prime factorization | 2 × 7 × 137 | 3 × 643 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 7, 14, 137, 274, 959, 1918 | 1, 3, 643, 1929 |
| Number of properties | 0 | 1 |
| Semiprimes | 555th | |
| Roman numberals | MCMXVIII | MCMXXIX |
| Base 2 | 111011111102 | 111100010012 |
| Base 3 | 21220013 | 21221103 |
| Base 4 | 1313324 | 1320214 |
| Base 5 | 301335 | 302045 |
| Base 6 | 125146 | 125336 |
| Base 7 | 54107 | 54247 |
| Base 8 | 35768 | 36118 |
| Base 9 | 25619 | 25739 |
| Base 10 | 191810 | 192910 |
| Base 11 | 149411 | 14a411 |
| Base 12 | 113a12 | 114912 |
| Base 13 | b4713 | b5513 |
| Base 14 | 9b014 | 9bb14 |
| Base 15 | 87d15 | 88915 |
| Base 16 | 77e16 | 78916 |