Compare 21139 vs 21146
| Property | 21139 | 21146 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 211391 | 21 × 971 × 1091 |
| Prime factorization | 21139 | 2 × 97 × 109 |
| Divisors count | 2 | 8 |
| Divisors | 1, 21139 | 1, 2, 97, 109, 194, 218, 10573, 21146 |
| Number of properties | 5 | 0 |
| Cousin primes (1st member) | 360th | |
| Good primes | 266th | |
| Isolated primes | 1656th | |
| Lucky primes | 385th | |
| Primes | 2375th | |
| Roman numberals | ||
| Base 2 | 1010010100100112 | 1010010100110102 |
| Base 3 | 10012222213 | 10020000123 |
| Base 4 | 110221034 | 110221224 |
| Base 5 | 11340245 | 11340415 |
| Base 6 | 2415116 | 2415226 |
| Base 7 | 1154267 | 1154367 |
| Base 8 | 512238 | 512328 |
| Base 9 | 318879 | 320059 |
| Base 10 | 2113910 | 2114610 |
| Base 11 | 1497811 | 1498411 |
| Base 12 | 1029712 | 102a212 |
| Base 13 | 981113 | 981813 |
| Base 14 | 79bd14 | 79c614 |
| Base 15 | 63e415 | 63eb15 |
| Base 16 | 529316 | 529a16 |