Compare 21386 vs 21391
Property | 21386 | 21391 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 4 | 1 |
Prime factorization | 21 × 172 × 371 | 213911 |
Prime factorization | 2 × 17 × 17 × 37 | 21391 |
Divisors count | 12 | 2 |
Divisors | 1, 2, 17, 34, 37, 74, 289, 578, 629, 1258, 10693, 21386 | 1, 21391 |
Number of properties | 0 | 3 |
Isolated primes | 1676th | |
Primes | 2401st | |
Sexy primes (1st member) | 729th | |
Roman numberals | ||
Base 2 | 1010011100010102 | 1010011100011112 |
Base 3 | 10021000023 | 10021000213 |
Base 4 | 110320224 | 110320334 |
Base 5 | 11410215 | 11410315 |
Base 6 | 2430026 | 2430116 |
Base 7 | 1162317 | 1162367 |
Base 8 | 516128 | 516178 |
Base 9 | 323029 | 323079 |
Base 10 | 2138610 | 2139110 |
Base 11 | 1508211 | 1508711 |
Base 12 | 1046212 | 1046712 |
Base 13 | 997113 | 997613 |
Base 14 | 7b1814 | 7b1d14 |
Base 15 | 650b15 | 651115 |
Base 16 | 538a16 | 538f16 |