5000001
domain: N
Appears in sequences
- Hexamorphic numbers: k such that the k-th hexagonal number ends with k.at n=34A039594
- Numbers m that divide the concatenation of m+1 and m+2.at n=23A069860
- Turban numbers: without letters r, t, or u.at n=14A072956
- Numbers k with the property that k divides one of the concatenations (k-1)(k-2) or (k-2)(k-1).at n=29A077292
- Centered hexamorphic numbers: the k-th centered hexagonal number, 3k(k-1)+1, ends in k.at n=33A094534
- Numbers n with property that average digit of n^2 is less than 1.at n=26A164842
- Numbers n with k digits such that n^2 == 1 (mod 10^k).at n=35A181607
- a(n) = 5*10^n + 1.at n=6A199685
- Numbers k such that the decimal representation of k ends that of the sum of the first k cubes.at n=37A301912