Compare 542 vs 547
| Property | 542 | 547 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 2711 | 5471 |
| Prime factorization | 2 × 271 | 547 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 271, 542 | 1, 547 |
| Number of properties | 1 | 8 |
| Centered heptagonal primes | 5th | |
| Cuban primes 1 | 9th | |
| Harmonic primes | 42nd | |
| Isolated primes | 52nd | |
| Left-truncatable primes | 35th | |
| Primes | 101st | |
| Semiprimes | 169th | |
| Sexy primes (2nd member) | 48th | |
| Super primes | 26th | |
| Roman numberals | DXLII | DXLVII |
| Base 2 | 10000111102 | 10001000112 |
| Base 3 | 2020023 | 2020213 |
| Base 4 | 201324 | 202034 |
| Base 5 | 41325 | 41425 |
| Base 6 | 23026 | 23116 |
| Base 7 | 14037 | 14117 |
| Base 8 | 10368 | 10438 |
| Base 9 | 6629 | 6679 |
| Base 10 | 54210 | 54710 |
| Base 11 | 45311 | 45811 |
| Base 12 | 39212 | 39712 |
| Base 13 | 32913 | 33113 |
| Base 14 | 2aa14 | 2b114 |
| Base 15 | 26215 | 26715 |
| Base 16 | 21e16 | 22316 |