52892561984
domain: N
Appears in sequences
- Numbers k such that the concatenation of k with itself is a biperiod square.at n=4A102567
- Numbers k such that k concatenated with k-9 gives the product of two numbers which differ by 6.at n=14A116098
- Numbers k such that k concatenated with k-4 gives the product of two numbers which differ by 4.at n=14A116129