Compare 519 vs 523
| Property | 519 | 523 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 1731 | 5231 |
| Prime factorization | 3 × 173 | 523 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 173, 519 | 1, 523 |
| Number of properties | 1 | 3 |
| Left-truncatable primes | 34th | |
| Primes | 99th | |
| Semiprimes | 161st | |
| Twin primes (2nd member) | 25th | |
| Roman numberals | DXIX | DXXIII |
| Base 2 | 10000001112 | 10000010112 |
| Base 3 | 2010203 | 2011013 |
| Base 4 | 200134 | 200234 |
| Base 5 | 40345 | 40435 |
| Base 6 | 22236 | 22316 |
| Base 7 | 13417 | 13457 |
| Base 8 | 10078 | 10138 |
| Base 9 | 6369 | 6419 |
| Base 10 | 51910 | 52310 |
| Base 11 | 43211 | 43611 |
| Base 12 | 37312 | 37712 |
| Base 13 | 30c13 | 31313 |
| Base 14 | 29114 | 29514 |
| Base 15 | 24915 | 24d15 |
| Base 16 | 20716 | 20b16 |