47497

Properties

Appears in sequences

• 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 14.at n=33A031602
• Numbers whose square root in base 10 starts with 10 distinct digits.at n=25A113507
• Primes p such that 8*p^2-2*p-1 divides Fibonacci(p).at n=37A159231
• Primes of the form 2*n^2 + 46*n + 21.at n=15A217495
• Primes having only {4, 7, 9} as digits.at n=25A261183
• Prime numbersat n=4895