Compare 222991 vs 222999
| Property | 222991 | 222999 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 5 |
| Prime factorization | 2229911 | 31 × 72 × 371 × 411 |
| Prime factorization | 222991 | 3 × 7 × 7 × 37 × 41 |
| Divisors count | 2 | 24 |
| Divisors | 1, 222991 | 1, 3, 7, 21, 37, 41, 49, 111, 123, 147, 259, 287, 777, 861, 1517, 1813, 2009, 4551, 5439, 6027, 10619, 31857, 74333, 222999 |
| Number of properties | 4 | 0 |
| Harmonic primes | 7460th | |
| Isolated primes | 15146th | |
| Lucky primes | 2536th | |
| Primes | 19857th | |
| Roman numberals | ||
| Base 2 | 1101100111000011112 | 1101100111000101112 |
| Base 3 | 1020222122213 | 1020222200203 |
| Base 4 | 3121300334 | 3121301134 |
| Base 5 | 241134315 | 241134445 |
| Base 6 | 44402116 | 44402236 |
| Base 7 | 16160567 | 16161007 |
| Base 8 | 6634178 | 6634278 |
| Base 9 | 3687879 | 3688069 |
| Base 10 | 22299110 | 22299910 |
| Base 11 | 14259a11 | 1425a711 |
| Base 12 | a906712 | a907312 |
| Base 13 | 7a66213 | 7a66a13 |
| Base 14 | 5b39d14 | 5b3a714 |
| Base 15 | 4611115 | 4611915 |
| Base 16 | 3670f16 | 3671716 |