Compare 20551 vs 21139
| Property | 20551 | 21139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 205511 | 211391 |
| Prime factorization | 20551 | 21139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20551 | 1, 21139 |
| Number of properties | 4 | 5 |
| Additive primes | 1077th | |
| Cousin primes (1st member) | 360th | |
| Good primes | 266th | |
| Isolated primes | 1656th | |
| Lucky primes | 376th | 385th |
| Primes | 2320th | 2375th |
| Twin primes (2nd member) | 350th | |
| Roman numberals | ||
| Base 2 | 1010000010001112 | 1010010100100112 |
| Base 3 | 10010120113 | 10012222213 |
| Base 4 | 110010134 | 110221034 |
| Base 5 | 11242015 | 11340245 |
| Base 6 | 2350516 | 2415116 |
| Base 7 | 1136267 | 1154267 |
| Base 8 | 501078 | 512238 |
| Base 9 | 311649 | 318879 |
| Base 10 | 2055110 | 2113910 |
| Base 11 | 1449311 | 1497811 |
| Base 12 | ba8712 | 1029712 |
| Base 13 | 947b13 | 981113 |
| Base 14 | 76bd14 | 79bd14 |
| Base 15 | 615115 | 63e415 |
| Base 16 | 504716 | 529316 |