Compare 219881 vs 220021
| Property | 219881 | 220021 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2198811 | 2200211 |
| Prime factorization | 219881 | 220021 |
| Divisors count | 2 | 2 |
| Divisors | 1, 219881 | 1, 220021 |
| Number of properties | 6 | 5 |
| Additive primes | 7929th | 7938th |
| Happy primes | 2980th | |
| Harmonic primes | 7353rd | |
| Isolated primes | 14952nd | |
| Primes | 19605th | 19622nd |
| Pythagorean primes | 9780th | 9789th |
| Sophie germain primes | 2219th | |
| Twin primes (2nd member) | 2330th | |
| Roman numberals | ||
| Base 2 | 1101011010111010012 | 1101011011011101012 |
| Base 3 | 1020111212023 | 1020112102213 |
| Base 4 | 3112232214 | 3112313114 |
| Base 5 | 240140115 | 240200415 |
| Base 6 | 44135456 | 44143416 |
| Base 7 | 16040247 | 16043147 |
| Base 8 | 6553518 | 6555658 |
| Base 9 | 3645529 | 3647279 |
| Base 10 | 21988110 | 22002110 |
| Base 11 | 14022211 | 14033a11 |
| Base 12 | a72b512 | a73b112 |
| Base 13 | 7910c13 | 791b913 |
| Base 14 | 5a1bb14 | 5a27b14 |
| Base 15 | 4523b15 | 452d115 |
| Base 16 | 35ae916 | 35b7516 |