Compare 4018 vs 4019
| Property | 4018 | 4019 | 
|---|---|---|
| Type | composite number | prime | 
| Unique factors | 3 | 1 | 
| Total factors | 4 | 1 | 
| Prime factorization | 21 × 72 × 411 | 40191 | 
| Prime factorization | 2 × 7 × 7 × 41 | 4019 | 
| Divisors count | 12 | 2 | 
| Divisors | 1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018 | 1, 4019 | 
| Number of properties | 0 | 8 | 
| Chen primes | 323rd | |
| Long primes | 220th | |
| Primes | 555th | |
| Sexy primes (2nd member) | 205th | |
| Sexy prime quadrupletss (4th member) | 17th | |
| Sexy prime triplets (3rd member) | 72nd | |
| Sophie germain primes | 102nd | |
| Twin primes (1st member) | 105th | |
| Roman numberals | MMMMXVIII | MMMMXIX | 
| Base 2 | 1111101100102 | 1111101100112 | 
| Base 3 | 121112113 | 121112123 | 
| Base 4 | 3323024 | 3323034 | 
| Base 5 | 1120335 | 1120345 | 
| Base 6 | 303346 | 303356 | 
| Base 7 | 145007 | 145017 | 
| Base 8 | 76628 | 76638 | 
| Base 9 | 54549 | 54559 | 
| Base 10 | 401810 | 401910 | 
| Base 11 | 302311 | 302411 | 
| Base 12 | 23aa12 | 23ab12 | 
| Base 13 | 1aa113 | 1aa213 | 
| Base 14 | 167014 | 167114 | 
| Base 15 | 12cd15 | 12ce15 | 
| Base 16 | fb216 | fb316 |