81249

Appears in sequences

• Trimorphic numbers: n^3 ends with n. Also m-morphic numbers for all m > 5 such that m-1 is not divisible by 10 and m == 3 (mod 4).at n=44A033819
• Trimorphic but not bimorphic nor automorphic.at n=35A056032
• a(n) = floor(log(n)*2^n/n).at n=18A065613
• a(n) = round(log(n)*2^n/n).at n=18A065614
• Numbers n with k digits such that n^2 == 1 (mod 10^k).at n=24A181607
• a(n) = (2*5^(2^n) - 1) mod 10^n: a sequence of trimorphic numbers ending in 9.at n=4A224473
• Numbers n such that the product of proper divisors of n ends with n and n is not a multiplicatively perfect number (A007422).at n=22A278474