524827

Properties

Appears in sequences

• a(n) = Sum_{ k, k|n } 2^(k-1).at n=19A034729
• Least number k such that there are exactly n powerful numbers between k^2 and (k+1)^2.at n=9A119242
• Primes p such that the polynomial k^4 + k^3 + k^2 + k + p yields only primes for k = 0...6.at n=17A247966
• Primes p such that the polynomial k^4 + k^3 + k^2 + k + p yields only primes for k = 0...7.at n=10A248206
• Numbers k such that there are exactly five biquadratefree powerful numbers (A338325) between k^2 and (k+1)^2.at n=27A338392
• Prime numbersat n=43422