Compare 21157 vs 21162
| Property | 21157 | 21162 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 211571 | 21 × 31 × 35271 |
| Prime factorization | 21157 | 2 × 3 × 3527 |
| Divisors count | 2 | 8 |
| Divisors | 1, 21157 | 1, 2, 3, 6, 3527, 7054, 10581, 21162 |
| Number of properties | 5 | 0 |
| Isolated primes | 1659th | |
| Primes | 2378th | |
| Pythagorean primes | 1181st | |
| Sexy primes (1st member) | 720th | |
| Sexy prime triplets (1st member) | 197th | |
| Roman numberals | ||
| Base 2 | 1010010101001012 | 1010010101010102 |
| Base 3 | 10020001213 | 10020002103 |
| Base 4 | 110222114 | 110222224 |
| Base 5 | 11341125 | 11341225 |
| Base 6 | 2415416 | 2415506 |
| Base 7 | 1154537 | 1154617 |
| Base 8 | 512458 | 512528 |
| Base 9 | 320179 | 320239 |
| Base 10 | 2115710 | 2116210 |
| Base 11 | 1499411 | 1499911 |
| Base 12 | 102b112 | 102b612 |
| Base 13 | 982613 | 982b13 |
| Base 14 | 79d314 | 79d814 |
| Base 15 | 640715 | 640c15 |
| Base 16 | 52a516 | 52aa16 |