Compare 21191 vs 21201
| Property | 21191 | 21201 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 211911 | 31 × 371 × 1911 |
| Prime factorization | 21191 | 3 × 37 × 191 |
| Divisors count | 2 | 8 |
| Divisors | 1, 21191 | 1, 3, 37, 111, 191, 573, 7067, 21201 |
| Number of properties | 7 | 0 |
| Chen primes | 1171st | |
| Cousin primes (2nd member) | 361st | |
| Primes | 2383rd | |
| Prime triplets (2nd member) | 178th | |
| Super primes | 354th | |
| Twin primes (1st member) | 361st | |
| Ulam primes | 179th | |
| Roman numberals | ||
| Base 2 | 1010010110001112 | 1010010110100012 |
| Base 3 | 10020012123 | 10020020203 |
| Base 4 | 110230134 | 110231014 |
| Base 5 | 11342315 | 11343015 |
| Base 6 | 2420356 | 2420536 |
| Base 7 | 1155327 | 1155457 |
| Base 8 | 513078 | 513218 |
| Base 9 | 320559 | 320669 |
| Base 10 | 2119110 | 2120110 |
| Base 11 | 14a1511 | 14a2411 |
| Base 12 | 1031b12 | 1032912 |
| Base 13 | 985113 | 985b13 |
| Base 14 | 7a1914 | 7a2514 |
| Base 15 | 642b15 | 643615 |
| Base 16 | 52c716 | 52d116 |