Compare 81283 vs 81291
| Property | 81283 | 81291 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 5 |
| Prime factorization | 812831 | 31 × 73 × 791 |
| Prime factorization | 81283 | 3 × 7 × 7 × 7 × 79 |
| Divisors count | 2 | 16 |
| Divisors | 1, 81283 | 1, 3, 7, 21, 49, 79, 147, 237, 343, 553, 1029, 1659, 3871, 11613, 27097, 81291 |
| Number of properties | 3 | 0 |
| Left-truncatable primes | 301st | |
| Primes | 7954th | |
| Twin primes (2nd member) | 1025th | |
| Roman numberals | ||
| Base 2 | 100111101100000112 | 100111101100010112 |
| Base 3 | 110101111113 | 110101112103 |
| Base 4 | 1033120034 | 1033120234 |
| Base 5 | 101001135 | 101001315 |
| Base 6 | 14241516 | 14242036 |
| Base 7 | 4556567 | 4560007 |
| Base 8 | 2366038 | 2366138 |
| Base 9 | 1334449 | 1334539 |
| Base 10 | 8128310 | 8129110 |
| Base 11 | 5608411 | 5609111 |
| Base 12 | 3b05712 | 3b06312 |
| Base 13 | 2acc713 | 2b00213 |
| Base 14 | 2189d14 | 218a714 |
| Base 15 | 1913d15 | 1914615 |
| Base 16 | 13d8316 | 13d8b16 |