Compare 1511 vs 131111
| Property | 1511 | 131111 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 15111 | 1311111 |
| Prime factorization | 1511 | 131111 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1511 | 1, 131111 |
| Number of properties | 7 | 5 |
| Chen primes | 155th | 5288th |
| Emirps | 73rd | |
| Happy primes | 48th | |
| Isolated primes | 141st | |
| Multiplicative primes | 17th | 28th |
| Primes | 240th | 12253rd |
| Sophie germain primes | 51st | |
| Super primes | 1465th | |
| Twin primes (1st member) | 1527th | |
| Roman numberals | MDXI | |
| Base 2 | 101111001112 | 1000000000001001112 |
| Base 3 | 20012223 | 201222112223 |
| Base 4 | 1132134 | 2000002134 |
| Base 5 | 220215 | 131434215 |
| Base 6 | 105556 | 24505556 |
| Base 7 | 42567 | 10541517 |
| Base 8 | 27478 | 4000478 |
| Base 9 | 20589 | 2187589 |
| Base 10 | 151110 | 13111110 |
| Base 11 | 115411 | 8a56211 |
| Base 12 | a5b12 | 63a5b12 |
| Base 13 | 8c313 | 478a613 |
| Base 14 | 79d14 | 35ad114 |
| Base 15 | 6ab15 | 28cab15 |
| Base 16 | 5e716 | 2002716 |