2614689

Appears in sequences

• Squares of odd pentagonal numbers.at n=16A014769
• Squares whose sum of digits as well as product of digits is a nonzero square.at n=24A061267
• Number of winning length n strings with a 9-symbol alphabet in "same game".at n=10A065242
• Smallest x such that sigma(x) mod 30 = n.at n=29A097013
• Smallest k such that sigma(k) + 1 is divisible by primorial(n).at n=3A097015
• Squares k such that k - 2 and k + 2 are prime.at n=29A144938
• Smallest x such that sigma(x) == n-1 (mod n).at n=29A233929
• Magic sums of 3 X 3 semimagic squares of squares whose rows, columns, and at least one of the two main diagonals sum to the same number.at n=14A271021
• Odd squares k, multiples of 3 and non-multiples of 5, such that sigma(k)/k >= 5/3.at n=34A388016