Compare 1618 vs 1649
| Property | 1618 | 1649 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 8091 | 171 × 971 |
| Prime factorization | 2 × 809 | 17 × 97 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 809, 1618 | 1, 17, 97, 1649 |
| Number of properties | 1 | 1 |
| Semiprimes | 464th | 474th |
| Roman numberals | MDCXVIII | MDCXLIX |
| Base 2 | 110010100102 | 110011100012 |
| Base 3 | 20122213 | 20210023 |
| Base 4 | 1211024 | 1213014 |
| Base 5 | 224335 | 230445 |
| Base 6 | 112546 | 113456 |
| Base 7 | 45017 | 45447 |
| Base 8 | 31228 | 31618 |
| Base 9 | 21879 | 22329 |
| Base 10 | 161810 | 164910 |
| Base 11 | 124111 | 126a11 |
| Base 12 | b2a12 | b5512 |
| Base 13 | 97613 | 99b13 |
| Base 14 | 83814 | 85b14 |
| Base 15 | 72d15 | 74e15 |
| Base 16 | 65216 | 67116 |