Compare 31387 vs 31395
| Property | 31387 | 31395 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 5 |
| Total factors | 1 | 5 |
| Prime factorization | 313871 | 31 × 51 × 71 × 131 × 231 |
| Prime factorization | 31387 | 3 × 5 × 7 × 13 × 23 |
| Divisors count | 2 | 32 |
| Divisors | 1, 31387 | 1, 3, 5, 7, 13, 15, 21, 23, 35, 39, 65, 69, 91, 105, 115, 161, 195, 273, 299, 345, 455, 483, 805, 897, 1365, 1495, 2093, 2415, 4485, 6279, 10465, 31395 |
| Number of properties | 8 | 0 |
| Chen primes | 1613th | |
| Cousin primes (1st member) | 484th | |
| Isolated primes | 2415th | |
| Lucky primes | 525th | |
| Primes | 3382nd | |
| Prime triplets (1st member) | 232nd | |
| Sexy primes (1st member) | 990th | |
| Ulam primes | 258th | |
| Roman numberals | ||
| Base 2 | 1111010100110112 | 1111010101000112 |
| Base 3 | 11210011113 | 11210012103 |
| Base 4 | 132221234 | 132222034 |
| Base 5 | 20010225 | 20010405 |
| Base 6 | 4011516 | 4012036 |
| Base 7 | 1603367 | 1603507 |
| Base 8 | 752338 | 752438 |
| Base 9 | 470449 | 470539 |
| Base 10 | 3138710 | 3139510 |
| Base 11 | 2164411 | 2165111 |
| Base 12 | 161b712 | 1620312 |
| Base 13 | 1139513 | 113a013 |
| Base 14 | b61d14 | b62714 |
| Base 15 | 947715 | 948015 |
| Base 16 | 7a9b16 | 7aa316 |