Compare 71981 vs 71983
| Property | 71981 | 71983 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 72 × 131 × 1131 | 719831 |
| Prime factorization | 7 × 7 × 13 × 113 | 71983 |
| Divisors count | 12 | 2 |
| Divisors | 1, 7, 13, 49, 91, 113, 637, 791, 1469, 5537, 10283, 71981 | 1, 71983 |
| Number of properties | 0 | 5 |
| Cousin primes (1st member) | 923rd | |
| Emirps | 1048th | |
| Isolated primes | 5264th | |
| Long primes | 2712th | |
| Primes | 7125th | |
| Roman numberals | ||
| Base 2 | 100011001001011012 | 100011001001011112 |
| Base 3 | 101222012223 | 101222020013 |
| Base 4 | 1012102314 | 1012102334 |
| Base 5 | 43004115 | 43004135 |
| Base 6 | 13131256 | 13131316 |
| Base 7 | 4166007 | 4166027 |
| Base 8 | 2144558 | 2144578 |
| Base 9 | 1186589 | 1186619 |
| Base 10 | 7198110 | 7198310 |
| Base 11 | 4a09811 | 4a09a11 |
| Base 12 | 357a512 | 357a712 |
| Base 13 | 269c013 | 269c213 |
| Base 14 | 1c33714 | 1c33914 |
| Base 15 | 164db15 | 164dd15 |
| Base 16 | 1192d16 | 1192f16 |