99904

Appears in sequences

• a(n) is the largest 5-digit number with exactly n divisors, or a(n) = 0 if no such number exists.at n=27A182698
• Numbers n such that sigma(n)/tau(n) is a perfect number.at n=17A219179
• Refactorable numbers k such that 2*k + 1 is also a refactorable number.at n=4A281294
• a(n) = (1/2) * Sum_{k=0..floor(n/3)} 2^k * binomial(2*k+2,2*n-6*k+1).at n=22A387552