Compare 1531 vs 1542
Property | 1531 | 1542 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 3 |
Total factors | 1 | 3 |
Prime factorization | 15311 | 21 × 31 × 2571 |
Prime factorization | 1531 | 2 × 3 × 257 |
Divisors count | 2 | 8 |
Divisors | 1, 1531 | 1, 2, 3, 6, 257, 514, 771, 1542 |
Number of properties | 5 | 0 |
Centered decagonal primes | 13th | |
Isolated primes | 143rd | |
Long primes | 91st | |
Primes | 242nd | |
Ulam primes | 22nd | |
Roman numberals | MDXXXI | MDXLII |
Base 2 | 101111110112 | 110000001102 |
Base 3 | 20022013 | 20100103 |
Base 4 | 1133234 | 1200124 |
Base 5 | 221115 | 221325 |
Base 6 | 110316 | 110506 |
Base 7 | 43157 | 43327 |
Base 8 | 27738 | 30068 |
Base 9 | 20819 | 21039 |
Base 10 | 153110 | 154210 |
Base 11 | 117211 | 118211 |
Base 12 | a7712 | a8612 |
Base 13 | 90a13 | 91813 |
Base 14 | 7b514 | 7c214 |
Base 15 | 6c115 | 6cc15 |
Base 16 | 5fb16 | 60616 |