Compare 1245 vs 1249
| Property | 1245 | 1249 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 51 × 831 | 12491 |
| Prime factorization | 3 × 5 × 83 | 1249 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 5, 15, 83, 249, 415, 1245 | 1, 1249 |
| Number of properties | 0 | 5 |
| Emirps | 58th | |
| Isolated primes | 121st | |
| Lucky primes | 53rd | |
| Primes | 204th | |
| Pythagorean primes | 101st | |
| Roman numberals | MCCXLV | MCCXLIX |
| Base 2 | 100110111012 | 100111000012 |
| Base 3 | 12010103 | 12010213 |
| Base 4 | 1031314 | 1032014 |
| Base 5 | 144405 | 144445 |
| Base 6 | 54336 | 54416 |
| Base 7 | 34267 | 34337 |
| Base 8 | 23358 | 23418 |
| Base 9 | 16339 | 16379 |
| Base 10 | 124510 | 124910 |
| Base 11 | a3211 | a3611 |
| Base 12 | 87912 | 88112 |
| Base 13 | 74a13 | 75113 |
| Base 14 | 64d14 | 65314 |
| Base 15 | 58015 | 58415 |
| Base 16 | 4dd16 | 4e116 |