Compare 1953 vs 1961
| Property | 1953 | 1961 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 32 × 71 × 311 | 371 × 531 |
| Prime factorization | 3 × 3 × 7 × 31 | 37 × 53 |
| Divisors count | 12 | 4 |
| Divisors | 1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953 | 1, 37, 53, 1961 |
| Number of properties | 0 | 1 |
| Semiprimes | 566th | |
| Roman numberals | MCMLIII | MCMLXI |
| Base 2 | 111101000012 | 111101010012 |
| Base 3 | 22001003 | 22001223 |
| Base 4 | 1322014 | 1322214 |
| Base 5 | 303035 | 303215 |
| Base 6 | 130136 | 130256 |
| Base 7 | 54607 | 55017 |
| Base 8 | 36418 | 36518 |
| Base 9 | 26109 | 26189 |
| Base 10 | 195310 | 196110 |
| Base 11 | 151611 | 152311 |
| Base 12 | 116912 | 117512 |
| Base 13 | b7313 | b7b13 |
| Base 14 | 9d714 | a0114 |
| Base 15 | 8a315 | 8ab15 |
| Base 16 | 7a116 | 7a916 |