Compare 520 vs 523
| Property | 520 | 523 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 23 × 51 × 131 | 5231 |
| Prime factorization | 2 × 2 × 2 × 5 × 13 | 523 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520 | 1, 523 |
| Number of properties | 0 | 3 |
| Left-truncatable primes | 34th | |
| Primes | 99th | |
| Twin primes (2nd member) | 25th | |
| Roman numberals | DXX | DXXIII |
| Base 2 | 10000010002 | 10000010112 |
| Base 3 | 2010213 | 2011013 |
| Base 4 | 200204 | 200234 |
| Base 5 | 40405 | 40435 |
| Base 6 | 22246 | 22316 |
| Base 7 | 13427 | 13457 |
| Base 8 | 10108 | 10138 |
| Base 9 | 6379 | 6419 |
| Base 10 | 52010 | 52310 |
| Base 11 | 43311 | 43611 |
| Base 12 | 37412 | 37712 |
| Base 13 | 31013 | 31313 |
| Base 14 | 29214 | 29514 |
| Base 15 | 24a15 | 24d15 |
| Base 16 | 20816 | 20b16 |