7290000

Appears in sequences

• Numbers of form 9^i*10^j, with i, j >= 0.at n=32A025635
• Squares resulting from procedure described in A048391.at n=17A048392
• Coefficients of power series A(x) consist entirely of squares, where A(x) = A083352(x)^2 + A083352(x) - 1.at n=56A083353
• a(n) = {n^2}_{n^2}.at n=29A122626
• Product of the nonzero digits (in base 10) of n^5.at n=21A218311
• Squares of the form x^3 + 2*y^3, with x, y > 0.at n=24A219728
• Squares that become cubes when their rightmost digit is removed.at n=7A226354
• Squares equal to the difference between two successive primes of the form k^2+2 in the order in which they appear in A056899.at n=15A261655
• Positive integers that are fixed points for the map x->f^k(x) for some k>1, where f(x) is the product of squares of nonzero digits of x.at n=13A352595
• Perfect powers of Achilles numbers.at n=26A383394
• Powers k^m, m > 1, where k is an Achilles number whose squarefree kernel is a primorial.at n=13A389226
• Powers k^m, m > 1, where k is an Achilles number that has a primorial kernel but is not a product of primorials.at n=5A389374
• Powers k^m, m > 1, where k is an Achilles number that is not a product of primorials.at n=18A389814
• Squares of Achilles numbers.at n=24A390435
• Powers k^m, m > 1, where k is an even Achilles number.at n=23A391376