Compare 221398 vs 221399
| Property | 221398 | 221399 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 231 × 48131 | 2213991 |
| Prime factorization | 2 × 23 × 4813 | 221399 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 23, 46, 4813, 9626, 110699, 221398 | 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 | 1101100000110101102 | 1101100000110101112 |
| Base 3 | 1020202002213 | 1020202002223 |
| Base 4 | 3120031124 | 3120031134 |
| Base 5 | 240410435 | 240410445 |
| Base 6 | 44245546 | 44245556 |
| Base 7 | 16113227 | 16113237 |
| Base 8 | 6603268 | 6603278 |
| Base 9 | 3666279 | 3666289 |
| Base 10 | 22139810 | 22139910 |
| Base 11 | 14138111 | 14138211 |
| Base 12 | a815a12 | a815b12 |
| Base 13 | 79a0813 | 79a0913 |
| Base 14 | 5a98214 | 5a98314 |
| Base 15 | 458ed15 | 458ee15 |
| Base 16 | 360d616 | 360d716 |