Compare 1850 vs 1861
| Property | 1850 | 1861 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 21 × 52 × 371 | 18611 |
| Prime factorization | 2 × 5 × 5 × 37 | 1861 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1850 | 1, 1861 |
| Number of properties | 0 | 10 |
| Centered square primes | 15th | |
| Good primes | 58th | |
| Harmonic primes | 103rd | |
| Isolated primes | 173rd | |
| Long primes | 112th | |
| Primes | 284th | |
| Pythagorean primes | 137th | |
| Sexy primes (1st member) | 120th | |
| Sexy prime quadrupletss (1st member) | 12th | |
| Sexy prime triplets (1st member) | 47th | |
| Roman numberals | MDCCCL | MDCCCLXI |
| Base 2 | 111001110102 | 111010001012 |
| Base 3 | 21121123 | 21122213 |
| Base 4 | 1303224 | 1310114 |
| Base 5 | 244005 | 244215 |
| Base 6 | 123226 | 123416 |
| Base 7 | 52527 | 52667 |
| Base 8 | 34728 | 35058 |
| Base 9 | 24759 | 24879 |
| Base 10 | 185010 | 186110 |
| Base 11 | 143211 | 144211 |
| Base 12 | 10a212 | 10b112 |
| Base 13 | ac413 | b0213 |
| Base 14 | 96214 | 96d14 |
| Base 15 | 83515 | 84115 |
| Base 16 | 73a16 | 74516 |