Compare 19961 vs 19971
| Property | 19961 | 19971 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 199611 | 32 × 71 × 3171 |
| Prime factorization | 19961 | 3 × 3 × 7 × 317 |
| Divisors count | 2 | 12 |
| Divisors | 1, 19961 | 1, 3, 7, 9, 21, 63, 317, 951, 2219, 2853, 6657, 19971 |
| Number of properties | 5 | 0 |
| Chen primes | 1110th | |
| Good primes | 257th | |
| Primes | 2256th | |
| Pythagorean primes | 1122nd | |
| Twin primes (1st member) | 341st | |
| Roman numberals | ||
| Base 2 | 1001101111110012 | 1001110000000112 |
| Base 3 | 10001010223 | 10001012003 |
| Base 4 | 103133214 | 103200034 |
| Base 5 | 11143215 | 11143415 |
| Base 6 | 2322256 | 2322436 |
| Base 7 | 1121247 | 1121407 |
| Base 8 | 467718 | 470038 |
| Base 9 | 303389 | 303509 |
| Base 10 | 1996110 | 1997110 |
| Base 11 | 13aa711 | 1400611 |
| Base 12 | b67512 | b68312 |
| Base 13 | 911613 | 912313 |
| Base 14 | 73bb14 | 73c714 |
| Base 15 | 5dab15 | 5db615 |
| Base 16 | 4df916 | 4e0316 |