Compare 221995 vs 221999
| Property | 221995 | 221999 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 291 × 15311 | 2219991 |
| Prime factorization | 5 × 29 × 1531 | 221999 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 29, 145, 1531, 7655, 44399, 221995 | 1, 221999 |
| Number of properties | 0 | 4 |
| Chen primes | 8241st | |
| Isolated primes | 15083rd | |
| Primes | 19776th | |
| Sophie germain primes | 2240th | |
| Roman numberals | ||
| Base 2 | 1101100011001010112 | 1101100011001011112 |
| Base 3 | 1020211120013 | 1020211120123 |
| Base 4 | 3120302234 | 3120302334 |
| Base 5 | 241004405 | 241004445 |
| Base 6 | 44314316 | 44314356 |
| Base 7 | 16131347 | 16131417 |
| Base 8 | 6614538 | 6614578 |
| Base 9 | 3674619 | 3674659 |
| Base 10 | 22199510 | 22199910 |
| Base 11 | 14187411 | 14187811 |
| Base 12 | a857712 | a857b12 |
| Base 13 | 7a07713 | 7a07b13 |
| Base 14 | 5ac8b14 | 5ac9114 |
| Base 15 | 45b9a15 | 45b9e15 |
| Base 16 | 3632b16 | 3632f16 |