39847

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 2x + 5.at n=21A023304
• Primes of the form p=floor(T/6), T are triangular numbers.at n=34A171595
• Number of convex quadrilaterals, distinct up to congruence, on an n X n grid (or geoboard).at n=9A181944
• Primes which become squares when the digits are rotated once to the right.at n=22A234925
• Prime numbersat n=4189