Compare 161872 vs 161881
| Property | 161872 | 161881 | 
|---|---|---|
| Type | composite number | prime | 
| Unique factors | 3 | 1 | 
| Total factors | 6 | 1 | 
| Prime factorization | 24 × 671 × 1511 | 1618811 | 
| Prime factorization | 2 × 2 × 2 × 2 × 67 × 151 | 161881 | 
| Divisors count | 20 | 2 | 
| Divisors | 1, 2, 4, 8, 16, 67, 134, 151, 268, 302, 536, 604, 1072, 1208, 2416, 10117, 20234, 40468, 80936, 161872 | 1, 161881 | 
| Number of properties | 0 | 6 | 
| Centered square primes | 80th | |
| Happy primes | 2297th | |
| Lucky primes | 1916th | |
| Primes | 14842nd | |
| Pythagorean primes | 7399th | |
| Twin primes (2nd member) | 1820th | |
| Roman numberals | ||
| Base 2 | 1001111000010100002 | 1001111000010110012 | 
| Base 3 | 220200010213 | 220200011213 | 
| Base 4 | 2132011004 | 2132011214 | 
| Base 5 | 201344425 | 201400115 | 
| Base 6 | 32452246 | 32452416 | 
| Base 7 | 12426347 | 12426467 | 
| Base 8 | 4741208 | 4741318 | 
| Base 9 | 2660379 | 2660479 | 
| Base 10 | 16187210 | 16188110 | 
| Base 11 | 10068711 | 10069511 | 
| Base 12 | 7981412 | 7982112 | 
| Base 13 | 588a913 | 588b513 | 
| Base 14 | 42dc414 | 42dcd14 | 
| Base 15 | 32e6715 | 32e7115 | 
| Base 16 | 2785016 | 2785916 |