Compare 661228 vs 661231
Property | 661228 | 661231 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 4 | 1 |
Prime factorization | 22 × 531 × 31191 | 6612311 |
Prime factorization | 2 × 2 × 53 × 3119 | 661231 |
Divisors count | 12 | 2 |
Divisors | 1, 2, 4, 53, 106, 212, 3119, 6238, 12476, 165307, 330614, 661228 | 1, 661231 |
Number of properties | 0 | 5 |
Additive primes | 20951st | |
Chen primes | 20995th | |
Isolated primes | 42084th | |
Primes | 53667th | |
Sexy primes (1st member) | 11588th | |
Roman numberals | ||
Base 2 | 101000010110111011002 | 101000010110111011112 |
Base 3 | 10201210002213 | 10201210010013 |
Base 4 | 22011232304 | 22011232334 |
Base 5 | 1321244035 | 1321244115 |
Base 6 | 221011246 | 221011316 |
Base 7 | 54225317 | 54225347 |
Base 8 | 24133548 | 24133578 |
Base 9 | 12170279 | 12170319 |
Base 10 | 66122810 | 66123110 |
Base 11 | 41187711 | 41187a11 |
Base 12 | 27a7a412 | 27a7a712 |
Base 13 | 1a1c7913 | 1a1c7c13 |
Base 14 | 132d8814 | 132d8b14 |
Base 15 | d0dbd15 | d0dc115 |
Base 16 | a16ec16 | a16ef16 |