Compare 163989 vs 163993
| Property | 163989 | 163993 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 32 × 71 × 191 × 1371 | 1639931 |
| Prime factorization | 3 × 3 × 7 × 19 × 137 | 163993 |
| Divisors count | 24 | 2 |
| Divisors | 1, 3, 7, 9, 19, 21, 57, 63, 133, 137, 171, 399, 411, 959, 1197, 1233, 2603, 2877, 7809, 8631, 18221, 23427, 54663, 163989 | 1, 163993 |
| Number of properties | 0 | 11 |
| Additive primes | 6149th | |
| Cousin primes (1st member) | 1812th | |
| Harmonic primes | 5636th | |
| Lucky primes | 1946th | |
| Primes | 15015th | |
| Prime triplets (2nd member) | 717th | |
| Prime triplets (3rd member) | 716th | |
| Pythagorean primes | 7488th | |
| Sexy primes (2nd member) | 3636th | |
| Sexy prime triplets (3rd member) | 751st | |
| Twin primes (2nd member) | 1838th | |
| Roman numberals | ||
| Base 2 | 1010000000100101012 | 1010000000100110012 |
| Base 3 | 220222212003 | 220222212113 |
| Base 4 | 2200021114 | 2200021214 |
| Base 5 | 202214245 | 202214335 |
| Base 6 | 33031136 | 33031216 |
| Base 7 | 12520507 | 12520547 |
| Base 8 | 5002258 | 5002318 |
| Base 9 | 2688509 | 2688549 |
| Base 10 | 16398910 | 16399310 |
| Base 11 | 10223111 | 10223511 |
| Base 12 | 7aa9912 | 7aaa112 |
| Base 13 | 5984713 | 5984b13 |
| Base 14 | 43a9714 | 43a9b14 |
| Base 15 | 338c915 | 338cd15 |
| Base 16 | 2809516 | 2809916 |