7272

Number
$7272$ (seven thousand, two hundred and seventy-two) is:


 * $2^3 \times 3^2 \times 101$


 * The $15$th Kaprekar number after $1, 9, 45, 55, 99, 297, 703, 999, 2223, 2728, 4879, 4950, 5050, 5292$:
 * $7272^2 = 52 \, 881 \, 984 \to 5288 + 1984 = 7272$