Compare 145983 vs 145987
| Property | 145983 | 145987 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 486611 | 1459871 |
| Prime factorization | 3 × 48661 | 145987 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 48661, 145983 | 1, 145987 |
| Number of properties | 1 | 6 |
| Cousin primes (1st member) | 1660th | |
| Happy primes | 2122nd | |
| Harmonic primes | 5072nd | |
| Isolated primes | 10189th | |
| Primes | 13506th | |
| Semiprimes | 33517th | |
| Ulam primes | 958th | |
| Roman numberals | ||
| Base 2 | 1000111010001111112 | 1000111010010000112 |
| Base 3 | 211020202103 | 211020202213 |
| Base 4 | 2032203334 | 2032210034 |
| Base 5 | 141324135 | 141324225 |
| Base 6 | 30435036 | 30435116 |
| Base 7 | 11454157 | 11454227 |
| Base 8 | 4350778 | 4351038 |
| Base 9 | 2422239 | 2422279 |
| Base 10 | 14598310 | 14598710 |
| Base 11 | 9a75211 | 9a75611 |
| Base 12 | 7059312 | 7059712 |
| Base 13 | 515a613 | 515aa13 |
| Base 14 | 3b2b514 | 3b2b914 |
| Base 15 | 2d3c315 | 2d3c715 |
| Base 16 | 23a3f16 | 23a4316 |