Compare 1898 vs 1909
| Property | 1898 | 1909 | 
|---|---|---|
| Type | composite number | semiprime | 
| Unique factors | 3 | 2 | 
| Total factors | 3 | 2 | 
| Prime factorization | 21 × 131 × 731 | 231 × 831 | 
| Prime factorization | 2 × 13 × 73 | 23 × 83 | 
| Divisors count | 8 | 4 | 
| Divisors | 1, 2, 13, 26, 73, 146, 949, 1898 | 1, 23, 83, 1909 | 
| Number of properties | 0 | 1 | 
| Semiprimes | 549th | |
| Roman numberals | MDCCCXCVIII | MCMIX | 
| Base 2 | 111011010102 | 111011101012 | 
| Base 3 | 21210223 | 21212013 | 
| Base 4 | 1312224 | 1313114 | 
| Base 5 | 300435 | 301145 | 
| Base 6 | 124426 | 125016 | 
| Base 7 | 53517 | 53657 | 
| Base 8 | 35528 | 35658 | 
| Base 9 | 25389 | 25519 | 
| Base 10 | 189810 | 190910 | 
| Base 11 | 147611 | 148611 | 
| Base 12 | 112212 | 113112 | 
| Base 13 | b3013 | b3b13 | 
| Base 14 | 99814 | 9a514 | 
| Base 15 | 86815 | 87415 | 
| Base 16 | 76a16 | 77516 |