Compare 21982 vs 21991
Property | 21982 | 21991 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 3 | 1 |
Prime factorization | 21 × 291 × 3791 | 219911 |
Prime factorization | 2 × 29 × 379 | 21991 |
Divisors count | 8 | 2 |
Divisors | 1, 2, 29, 58, 379, 758, 10991, 21982 | 1, 21991 |
Number of properties | 0 | 5 |
Chen primes | 1208th | |
Isolated primes | 1720th | |
Primes | 2463rd | |
Sexy primes (1st member) | 742nd | |
Sexy prime triplets (1st member) | 202nd | |
Roman numberals | ||
Base 2 | 1010101110111102 | 1010101111001112 |
Base 3 | 10100110113 | 10100111113 |
Base 4 | 111131324 | 111132134 |
Base 5 | 12004125 | 12004315 |
Base 6 | 2454346 | 2454516 |
Base 7 | 1210427 | 1210547 |
Base 8 | 527368 | 527478 |
Base 9 | 331349 | 331449 |
Base 10 | 2198210 | 2199110 |
Base 11 | 1557411 | 1558211 |
Base 12 | 1087a12 | 1088712 |
Base 13 | a00c13 | a01813 |
Base 14 | 802214 | 802b14 |
Base 15 | 67a715 | 67b115 |
Base 16 | 55de16 | 55e716 |