Compare 280904 vs 280909
| Property | 280904 | 280909 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 6 | 1 |
| Prime factorization | 23 × 131 × 371 × 731 | 2809091 |
| Prime factorization | 2 × 2 × 2 × 13 × 37 × 73 | 280909 |
| Divisors count | 32 | 2 |
| Divisors | 1, 2, 4, 8, 13, 26, 37, 52, 73, 74, 104, 146, 148, 292, 296, 481, 584, 949, 962, 1898, 1924, 2701, 3796, 3848, 5402, 7592, 10804, 21608, 35113, 70226, 140452, 280904 | 1, 280909 |
| Number of properties | 0 | 9 |
| Chen primes | 10082nd | |
| Cousin primes (1st member) | 2821st | |
| Cuban primes 2 | 50th | |
| Happy primes | 3657th | |
| Harmonic primes | 9144th | |
| Isolated primes | 18825th | |
| Long primes | 9182nd | |
| Primes | 24508th | |
| Ulam primes | 1740th | |
| Roman numberals | ||
| Base 2 | 10001001001010010002 | 10001001001010011012 |
| Base 3 | 1120210222123 | 1120211000013 |
| Base 4 | 10102110204 | 10102110314 |
| Base 5 | 324421045 | 324421145 |
| Base 6 | 100042526 | 100043016 |
| Base 7 | 22466517 | 22466567 |
| Base 8 | 10445108 | 10445158 |
| Base 9 | 4672859 | 4673019 |
| Base 10 | 28090410 | 28090910 |
| Base 11 | 18205811 | 18206211 |
| Base 12 | 11668812 | 11669112 |
| Base 13 | 9ab2013 | 9ab2513 |
| Base 14 | 7452814 | 7452d14 |
| Base 15 | 5836e15 | 5837415 |
| Base 16 | 4494816 | 4494d16 |