Compare 1551 vs 1561
Property | 1551 | 1561 |
---|---|---|
Type | composite number | semiprime |
Unique factors | 3 | 2 |
Total factors | 3 | 2 |
Prime factorization | 31 × 111 × 471 | 71 × 2231 |
Prime factorization | 3 × 11 × 47 | 7 × 223 |
Divisors count | 8 | 4 |
Divisors | 1, 3, 11, 33, 47, 141, 517, 1551 | 1, 7, 223, 1561 |
Number of properties | 0 | 1 |
Semiprimes | 453rd | |
Roman numberals | MDLI | MDLXI |
Base 2 | 110000011112 | 110000110012 |
Base 3 | 20101103 | 20102113 |
Base 4 | 1200334 | 1201214 |
Base 5 | 222015 | 222215 |
Base 6 | 111036 | 111216 |
Base 7 | 43447 | 43607 |
Base 8 | 30178 | 30318 |
Base 9 | 21139 | 21249 |
Base 10 | 155110 | 156110 |
Base 11 | 119011 | 119a11 |
Base 12 | a9312 | aa112 |
Base 13 | 92413 | 93113 |
Base 14 | 7cb14 | 7d714 |
Base 15 | 6d615 | 6e115 |
Base 16 | 60f16 | 61916 |