Compare 19978 vs 19979
| Property | 19978 | 19979 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 71 × 14271 | 199791 |
| Prime factorization | 2 × 7 × 1427 | 19979 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 7, 14, 1427, 2854, 9989, 19978 | 1, 19979 |
| Number of properties | 0 | 6 |
| Happy primes | 376th | |
| Harmonic primes | 819th | |
| Isolated primes | 1578th | |
| Long primes | 864th | |
| Primes | 2259th | |
| Sexy primes (2nd member) | 692nd | |
| Roman numberals | ||
| Base 2 | 1001110000010102 | 1001110000010112 |
| Base 3 | 10001012213 | 10001012223 |
| Base 4 | 103200224 | 103200234 |
| Base 5 | 11144035 | 11144045 |
| Base 6 | 2322546 | 2322556 |
| Base 7 | 1121507 | 1121517 |
| Base 8 | 470128 | 470138 |
| Base 9 | 303579 | 303589 |
| Base 10 | 1997810 | 1997910 |
| Base 11 | 1401211 | 1401311 |
| Base 12 | b68a12 | b68b12 |
| Base 13 | 912a13 | 912b13 |
| Base 14 | 73d014 | 73d114 |
| Base 15 | 5dbd15 | 5dbe15 |
| Base 16 | 4e0a16 | 4e0b16 |