Compare 221397 vs 221399
| Property | 221397 | 221399 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 111 × 67091 | 2213991 |
| Prime factorization | 3 × 11 × 6709 | 221399 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 11, 33, 6709, 20127, 73799, 221397 | 1, 221399 |
| Number of properties | 0 | 4 |
| Chen primes | 8221st | |
| Primes | 19726th | |
| Sexy primes (2nd member) | 4666th | |
| Twin primes (1st member) | 2340th | |
| Roman numberals | ||
| Base 2 | 1101100000110101012 | 1101100000110101112 |
| Base 3 | 1020202002203 | 1020202002223 |
| Base 4 | 3120031114 | 3120031134 |
| Base 5 | 240410425 | 240410445 |
| Base 6 | 44245536 | 44245556 |
| Base 7 | 16113217 | 16113237 |
| Base 8 | 6603258 | 6603278 |
| Base 9 | 3666269 | 3666289 |
| Base 10 | 22139710 | 22139910 |
| Base 11 | 14138011 | 14138211 |
| Base 12 | a815912 | a815b12 |
| Base 13 | 79a0713 | 79a0913 |
| Base 14 | 5a98114 | 5a98314 |
| Base 15 | 458ec15 | 458ee15 |
| Base 16 | 360d516 | 360d716 |