Compare 1917 vs 1920
| Property | 1917 | 1920 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 4 | 9 |
| Prime factorization | 33 × 711 | 27 × 31 × 51 |
| Prime factorization | 3 × 3 × 3 × 71 | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 |
| Divisors count | 8 | 32 |
| Divisors | 1, 3, 9, 27, 71, 213, 639, 1917 | 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920 |
| Number of properties | 0 | 0 |
| Roman numberals | MCMXVII | MCMXX |
| Base 2 | 111011111012 | 111100000002 |
| Base 3 | 21220003 | 21220103 |
| Base 4 | 1313314 | 1320004 |
| Base 5 | 301325 | 301405 |
| Base 6 | 125136 | 125206 |
| Base 7 | 54067 | 54127 |
| Base 8 | 35758 | 36008 |
| Base 9 | 25609 | 25639 |
| Base 10 | 191710 | 192010 |
| Base 11 | 149311 | 149611 |
| Base 12 | 113912 | 114012 |
| Base 13 | b4613 | b4913 |
| Base 14 | 9ad14 | 9b214 |
| Base 15 | 87c15 | 88015 |
| Base 16 | 77d16 | 78016 |