851851

Appears in sequences

• Kaprekar numbers: numbers k such that k = q + r and k^2 = q*10^m + r, for some m >= 1, q >= 0 and 0 <= r < 10^m. Here q and r must both have the same number of digits.at n=30A045913
• The full list of 6-Kaprekar numbers.at n=27A053397
• Square roots of terms in A238237.at n=34A290449
• Kaprekar numbers that are the concatenation of two equal numbers.at n=8A381917