Compare 21929 vs 21991
| Property | 21929 | 21991 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 219291 | 219911 |
| Prime factorization | 21929 | 21991 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21929 | 1, 21991 |
| Number of properties | 5 | 5 |
| Additive primes | 1137th | |
| Chen primes | 1208th | |
| Harmonic primes | 905th | |
| Isolated primes | 1715th | 1720th |
| Primes | 2458th | 2463rd |
| Pythagorean primes | 1219th | |
| Sexy primes (1st member) | 742nd | |
| Sexy prime triplets (1st member) | 202nd | |
| Roman numberals | ||
| Base 2 | 1010101101010012 | 1010101111001112 |
| Base 3 | 10100020123 | 10100111113 |
| Base 4 | 111122214 | 111132134 |
| Base 5 | 12002045 | 12004315 |
| Base 6 | 2453056 | 2454516 |
| Base 7 | 1206357 | 1210547 |
| Base 8 | 526518 | 527478 |
| Base 9 | 330659 | 331449 |
| Base 10 | 2192910 | 2199110 |
| Base 11 | 1552611 | 1558211 |
| Base 12 | 1083512 | 1088712 |
| Base 13 | 9c9b13 | a01813 |
| Base 14 | 7dc514 | 802b14 |
| Base 15 | 676e15 | 67b115 |
| Base 16 | 55a916 | 55e716 |