Compare 1963 vs 1965
| Property | 1963 | 1965 | 
|---|---|---|
| Type | semiprime | composite number | 
| Unique factors | 2 | 3 | 
| Total factors | 2 | 3 | 
| Prime factorization | 131 × 1511 | 31 × 51 × 1311 | 
| Prime factorization | 13 × 151 | 3 × 5 × 131 | 
| Divisors count | 4 | 8 | 
| Divisors | 1, 13, 151, 1963 | 1, 3, 5, 15, 131, 393, 655, 1965 | 
| Number of properties | 1 | 0 | 
| Semiprimes | 567th | |
| Roman numberals | MCMLXIII | MCMLXV | 
| Base 2 | 111101010112 | 111101011012 | 
| Base 3 | 22002013 | 22002103 | 
| Base 4 | 1322234 | 1322314 | 
| Base 5 | 303235 | 303305 | 
| Base 6 | 130316 | 130336 | 
| Base 7 | 55037 | 55057 | 
| Base 8 | 36538 | 36558 | 
| Base 9 | 26219 | 26239 | 
| Base 10 | 196310 | 196510 | 
| Base 11 | 152511 | 152711 | 
| Base 12 | 117712 | 117912 | 
| Base 13 | b8013 | b8213 | 
| Base 14 | a0314 | a0514 | 
| Base 15 | 8ad15 | 8b015 | 
| Base 16 | 7ab16 | 7ad16 |