68377223

Properties

Appears in sequences

• Number of squares (of positive integers) with n digits.at n=15A049415
• Number of squares (including 0) with n digits.at n=15A062940
• a(n) = the largest number one can subtract from 10^n such that the square of the result is strictly greater than 10^(2*n-1).at n=7A128869
• Prime numbersat n=4028185