Compare 1978 vs 1989
| Property | 1978 | 1989 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 3 | 4 |
| Prime factorization | 21 × 231 × 431 | 32 × 131 × 171 |
| Prime factorization | 2 × 23 × 43 | 3 × 3 × 13 × 17 |
| Divisors count | 8 | 12 |
| Divisors | 1, 2, 23, 43, 46, 86, 989, 1978 | 1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989 |
| Number of properties | 0 | 0 |
| Roman numberals | MCMLXXVIII | MCMLXXXIX |
| Base 2 | 111101110102 | 111110001012 |
| Base 3 | 22010213 | 22012003 |
| Base 4 | 1323224 | 1330114 |
| Base 5 | 304035 | 304245 |
| Base 6 | 130546 | 131136 |
| Base 7 | 55247 | 55417 |
| Base 8 | 36728 | 37058 |
| Base 9 | 26379 | 26509 |
| Base 10 | 197810 | 198910 |
| Base 11 | 153911 | 154911 |
| Base 12 | 118a12 | 119912 |
| Base 13 | b9213 | ba013 |
| Base 14 | a1414 | a2114 |
| Base 15 | 8bd15 | 8c915 |
| Base 16 | 7ba16 | 7c516 |