672525

Appears in sequences

• Odd nonsquares k for which A161942(k) >= k, where A161942 is the odd part of sigma.at n=18A348743
• Odd nondeficient numbers of the form p^(1+4k) * r^2, where p is prime of the form 1+4m, r > 1, and gcd(p,r) = 1.at n=18A386427
• Odd nonsquares k such that gcd(A276086(sigma(k)/2), A276086(k)) is equal to A276086(k), where A276086 is the primorial base exp-function, and sigma is the sum of divisors function.at n=1A388273