Compare 1523 vs 2447
| Property | 1523 | 2447 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 15231 | 24471 |
| Prime factorization | 1523 | 2447 |
| Divisors count | 2 | 2 |
| Divisors | 1, 1523 | 1, 2447 |
| Number of properties | 7 | 9 |
| Additive primes | 131st | 191st |
| Chen primes | 219th | |
| Emirps | 74th | |
| Harmonic primes | 135th | |
| Isolated primes | 142nd | 220th |
| Left-truncatable primes | 59th | |
| Long primes | 143rd | |
| Primes | 241st | 363rd |
| Safe primes | 34th | 43rd |
| Sexy primes (2nd member) | 150th | |
| Super primes | 53rd | |
| Ulam primes | 28th | |
| Roman numberals | MDXXIII | MMCDXLVII |
| Base 2 | 101111100112 | 1001100011112 |
| Base 3 | 20021023 | 101001223 |
| Base 4 | 1133034 | 2120334 |
| Base 5 | 220435 | 342425 |
| Base 6 | 110156 | 151556 |
| Base 7 | 43047 | 100647 |
| Base 8 | 27638 | 46178 |
| Base 9 | 20729 | 33189 |
| Base 10 | 152310 | 244710 |
| Base 11 | 116511 | 192511 |
| Base 12 | a6b12 | 14bb12 |
| Base 13 | 90213 | 116313 |
| Base 14 | 7ab14 | c6b14 |
| Base 15 | 6b815 | ad215 |
| Base 16 | 5f316 | 98f16 |