Compare 142781 vs 142787
| Property | 142781 | 142787 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 711 × 20111 | 1427871 |
| Prime factorization | 71 × 2011 | 142787 |
| Divisors count | 4 | 2 |
| Divisors | 1, 71, 2011, 142781 | 1, 142787 |
| Number of properties | 1 | 4 |
| Additive primes | 5470th | |
| Chen primes | 5702nd | |
| Primes | 13247th | |
| Semiprimes | 32797th | |
| Twin primes (1st member) | 1634th | |
| Roman numberals | ||
| Base 2 | 1000101101101111012 | 1000101101110000112 |
| Base 3 | 210202120123 | 210202121023 |
| Base 4 | 2023123314 | 2023130034 |
| Base 5 | 140321115 | 140321225 |
| Base 6 | 30210056 | 30210156 |
| Base 7 | 11331627 | 11332017 |
| Base 8 | 4266758 | 4267038 |
| Base 9 | 2367659 | 2367729 |
| Base 10 | 14278110 | 14278710 |
| Base 11 | 9830111 | 9830711 |
| Base 12 | 6a76512 | 6a76b12 |
| Base 13 | 4ccb213 | 4ccb813 |
| Base 14 | 3a06914 | 3a07114 |
| Base 15 | 2c48b15 | 2c49215 |
| Base 16 | 22dbd16 | 22dc316 |