Compare 21157 vs 21991
Property | 21157 | 21991 |
---|---|---|
Type | prime | prime |
Unique factors | 1 | 1 |
Total factors | 1 | 1 |
Prime factorization | 211571 | 219911 |
Prime factorization | 21157 | 21991 |
Divisors count | 2 | 2 |
Divisors | 1, 21157 | 1, 21991 |
Number of properties | 5 | 5 |
Chen primes | 1208th | |
Isolated primes | 1659th | 1720th |
Primes | 2378th | 2463rd |
Pythagorean primes | 1181st | |
Sexy primes (1st member) | 720th | 742nd |
Sexy prime triplets (1st member) | 197th | 202nd |
Roman numberals | ||
Base 2 | 1010010101001012 | 1010101111001112 |
Base 3 | 10020001213 | 10100111113 |
Base 4 | 110222114 | 111132134 |
Base 5 | 11341125 | 12004315 |
Base 6 | 2415416 | 2454516 |
Base 7 | 1154537 | 1210547 |
Base 8 | 512458 | 527478 |
Base 9 | 320179 | 331449 |
Base 10 | 2115710 | 2199110 |
Base 11 | 1499411 | 1558211 |
Base 12 | 102b112 | 1088712 |
Base 13 | 982613 | a01813 |
Base 14 | 79d314 | 802b14 |
Base 15 | 640715 | 67b115 |
Base 16 | 52a516 | 55e716 |