Compare 21153 vs 21157
| Property | 21153 | 21157 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 111 × 6411 | 211571 |
| Prime factorization | 3 × 11 × 641 | 21157 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 11, 33, 641, 1923, 7051, 21153 | 1, 21157 |
| Number of properties | 0 | 5 |
| Isolated primes | 1659th | |
| Primes | 2378th | |
| Pythagorean primes | 1181st | |
| Sexy primes (1st member) | 720th | |
| Sexy prime triplets (1st member) | 197th | |
| Roman numberals | ||
| Base 2 | 1010010101000012 | 1010010101001012 |
| Base 3 | 10020001103 | 10020001213 |
| Base 4 | 110222014 | 110222114 |
| Base 5 | 11341035 | 11341125 |
| Base 6 | 2415336 | 2415416 |
| Base 7 | 1154467 | 1154537 |
| Base 8 | 512418 | 512458 |
| Base 9 | 320139 | 320179 |
| Base 10 | 2115310 | 2115710 |
| Base 11 | 1499011 | 1499411 |
| Base 12 | 102a912 | 102b112 |
| Base 13 | 982213 | 982613 |
| Base 14 | 79cd14 | 79d314 |
| Base 15 | 640315 | 640715 |
| Base 16 | 52a116 | 52a516 |