524801

Properties

Appears in sequences

• Numbers that are the sum of 4 positive 9th powers.at n=26A003393
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 57.at n=24A031645
• Primes of the form 2^i + 2^j + 1, i > j > 0.at n=40A081091
• Primes whose representation in base 512 can be interpreted as a decimal prime.at n=14A090720
• Primes dividing repunits R(10^n) for some n.at n=45A178070
• Prime factors (counting multiplicity) of 10^10^10^10^2 - 1.at n=47A278835
• a(n) is the least positive integer that differs (in absolute value) by an (n+1)-st power from the reverse of its binary representation.at n=7A278930
• a(n) = 2^(n - 1) * (2^n + 1) + 1.at n=10A281481
• Odd primes whose base-2 representation has no proper substrings that are base-2 representations of odd primes.at n=28A365518
• Prime numbersat n=43420