223

Number
$223$ (two hundred and twenty-three) is:


 * The $48$th prime number


 * The $43$rd lucky number:
 * $1, 3, 7, 9, 13, 15, 21, \ldots, 163, 169, 171, 189, 193, 195, 201, 205, 211, 219, 223, \ldots$


 * The $14$th integer after $7, 13, 19, 35, 38, 41, 57, 65, 70, 125, 130, 190, 205$ the decimal representation of whose square can be split into two parts which are each themselves square:
 * $223^2 = 49 \, 729; 49 = 7^2, 729 = 27^2$


 * The largest positive integer which cannot be expressed as the sum of less than $37$ positive fifth powers:
 * $223 = 31 \times 1^5 + 6 \times 2^5$

Also see

 * Largest Number not Expressible as Sum of Less than 37 Fifth Powers