72481

Properties

Appears in sequences

• Half-quartan primes: primes of the form p = (x^4 + y^4)/2.at n=23A002646
• Beginning with 3, least member of A007500 such that concatenation of first n terms and its digit reversal both are primes.at n=36A111383
• Primes of the form 20n^2+8n+1.at n=22A154405
• Conjectured record minima of the positive distance d between the square of an integer y and the fifth power of a positive integer x such that d = y^2 - x^5 (x <> k^2 and y <> k^5).at n=12A198443
• Primes of the form 2*n^2+30*n+13.at n=18A243889
• Prime numbersat n=7170