Compare 1961 vs 1970
| Property | 1961 | 1970 | 
|---|---|---|
| Type | semiprime | composite number | 
| Unique factors | 2 | 3 | 
| Total factors | 2 | 3 | 
| Prime factorization | 371 × 531 | 21 × 51 × 1971 | 
| Prime factorization | 37 × 53 | 2 × 5 × 197 | 
| Divisors count | 4 | 8 | 
| Divisors | 1, 37, 53, 1961 | 1, 2, 5, 10, 197, 394, 985, 1970 | 
| Number of properties | 1 | 0 | 
| Semiprimes | 566th | |
| Roman numberals | MCMLXI | MCMLXX | 
| Base 2 | 111101010012 | 111101100102 | 
| Base 3 | 22001223 | 22002223 | 
| Base 4 | 1322214 | 1323024 | 
| Base 5 | 303215 | 303405 | 
| Base 6 | 130256 | 130426 | 
| Base 7 | 55017 | 55137 | 
| Base 8 | 36518 | 36628 | 
| Base 9 | 26189 | 26289 | 
| Base 10 | 196110 | 197010 | 
| Base 11 | 152311 | 153111 | 
| Base 12 | 117512 | 118212 | 
| Base 13 | b7b13 | b8713 | 
| Base 14 | a0114 | a0a14 | 
| Base 15 | 8ab15 | 8b515 | 
| Base 16 | 7a916 | 7b216 |