Compare 21157 vs 21283
| Property | 21157 | 21283 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 211571 | 212831 |
| Prime factorization | 21157 | 21283 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21157 | 1, 21283 |
| Number of properties | 5 | 5 |
| Happy primes | 395th | |
| Isolated primes | 1659th | 1670th |
| Left-truncatable primes | 170th | |
| Primes | 2378th | 2391st |
| Pythagorean primes | 1181st | |
| Sexy primes (1st member) | 720th | |
| Sexy primes (2nd member) | 724th | |
| Sexy prime triplets (1st member) | 197th | |
| Roman numberals | ||
| Base 2 | 1010010101001012 | 1010011001000112 |
| Base 3 | 10020001213 | 10020120213 |
| Base 4 | 110222114 | 110302034 |
| Base 5 | 11341125 | 11401135 |
| Base 6 | 2415416 | 2423116 |
| Base 7 | 1154537 | 1160237 |
| Base 8 | 512458 | 514438 |
| Base 9 | 320179 | 321679 |
| Base 10 | 2115710 | 2128310 |
| Base 11 | 1499411 | 14a9911 |
| Base 12 | 102b112 | 1039712 |
| Base 13 | 982613 | 98c213 |
| Base 14 | 79d314 | 7a8314 |
| Base 15 | 640715 | 648d15 |
| Base 16 | 52a516 | 532316 |