Compare 18109 vs 18121
| Property | 18109 | 18121 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 71 × 131 × 1991 | 181211 |
| Prime factorization | 7 × 13 × 199 | 18121 |
| Divisors count | 8 | 2 |
| Divisors | 1, 7, 13, 91, 199, 1393, 2587, 18109 | 1, 18121 |
| Number of properties | 0 | 7 |
| Additive primes | 975th | |
| Harmonic primes | 751st | |
| Primes | 2076th | |
| Pythagorean primes | 1025th | |
| Sexy primes (1st member) | 640th | |
| Sexy prime triplets (1st member) | 178th | |
| Twin primes (2nd member) | 319th | |
| Roman numberals | ||
| Base 2 | 1000110101111012 | 1000110110010012 |
| Base 3 | 2202112013 | 2202120113 |
| Base 4 | 101223314 | 101230214 |
| Base 5 | 10344145 | 10344415 |
| Base 6 | 2155016 | 2155216 |
| Base 7 | 1035407 | 1035557 |
| Base 8 | 432758 | 433118 |
| Base 9 | 267519 | 267649 |
| Base 10 | 1810910 | 1812110 |
| Base 11 | 1267311 | 1268411 |
| Base 12 | a59112 | a5a112 |
| Base 13 | 832013 | 832c13 |
| Base 14 | 685714 | 686514 |
| Base 15 | 557415 | 558115 |
| Base 16 | 46bd16 | 46c916 |