88689

Appears in sequences

• Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 18 (most significant digit on right).at n=26A029511
• Numbers with multiplicative persistence value 7.at n=7A046516
• For n > 1, a(n) is the smallest number such that n-th concatenation is prime and the smallest palindrome beginning with (but not equal to) this concatenation is also prime.at n=39A088090
• Composite numbers whose multiplicative persistence is 7.at n=7A199997
• Number of 2 X 2 matrices with all elements in {0,1,...,n} and positive even determinant.at n=22A210372