214852609

Appears in sequences

• Carmichael numbers which are also base-2 strong pseudoprimes.at n=25A063847
• a(n) is the smallest Carmichael number k such that gpf(p-1) = prime(n) for all prime factors p of k.at n=6A327787
• Carmichael numbers (A002997) that are not minimal in their family.at n=16A335584
• Carmichael numbers k for which the 2-adic valuation of phi(k) does not exceed the 2-adic valuation of k-1.at n=24A339818
• Carmichael numbers ending in 9.at n=26A352970