Compare 1969 vs 1979
| Property | 1969 | 1979 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 111 × 1791 | 19791 |
| Prime factorization | 11 × 179 | 1979 |
| Divisors count | 4 | 2 |
| Divisors | 1, 11, 179, 1969 | 1, 1979 |
| Number of properties | 1 | 6 |
| Chen primes | 184th | |
| Emirps | 96th | |
| Isolated primes | 180th | |
| Long primes | 116th | |
| Primes | 299th | |
| Semiprimes | 570th | |
| Sexy primes (2nd member) | 126th | |
| Roman numberals | MCMLXIX | MCMLXXIX |
| Base 2 | 111101100012 | 111101110112 |
| Base 3 | 22002213 | 22010223 |
| Base 4 | 1323014 | 1323234 |
| Base 5 | 303345 | 304045 |
| Base 6 | 130416 | 130556 |
| Base 7 | 55127 | 55257 |
| Base 8 | 36618 | 36738 |
| Base 9 | 26279 | 26389 |
| Base 10 | 196910 | 197910 |
| Base 11 | 153011 | 153a11 |
| Base 12 | 118112 | 118b12 |
| Base 13 | b8613 | b9313 |
| Base 14 | a0914 | a1514 |
| Base 15 | 8b415 | 8be15 |
| Base 16 | 7b116 | 7bb16 |