Compare 21133 vs 21139
| Property | 21133 | 21139 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 71 × 30191 | 211391 |
| Prime factorization | 7 × 3019 | 21139 |
| Divisors count | 4 | 2 |
| Divisors | 1, 7, 3019, 21133 | 1, 21139 |
| Number of properties | 1 | 5 |
| Cousin primes (1st member) | 360th | |
| Good primes | 266th | |
| Isolated primes | 1656th | |
| Lucky primes | 385th | |
| Primes | 2375th | |
| Semiprimes | 5358th | |
| Roman numberals | ||
| Base 2 | 1010010100011012 | 1010010100100112 |
| Base 3 | 10012222013 | 10012222213 |
| Base 4 | 110220314 | 110221034 |
| Base 5 | 11340135 | 11340245 |
| Base 6 | 2415016 | 2415116 |
| Base 7 | 1154207 | 1154267 |
| Base 8 | 512158 | 512238 |
| Base 9 | 318819 | 318879 |
| Base 10 | 2113310 | 2113910 |
| Base 11 | 1497211 | 1497811 |
| Base 12 | 1029112 | 1029712 |
| Base 13 | 980813 | 981113 |
| Base 14 | 79b714 | 79bd14 |
| Base 15 | 63dd15 | 63e415 |
| Base 16 | 528d16 | 529316 |