7272727

Appears in sequences

• Palindromes of the form 6n + 1 where n is also a palindrome. palindromes arising in A083835.at n=15A083836
• Numbers k such that k * (k+1) is the concatenation of a number m with itself.at n=8A116285
• Numbers k of the form a - b + c, such that k^3 equals the decimal concatenation a//b//c and numbers k, b, and c have the same number of digits.at n=30A259379