531,441

Number
$531 \, 441$ (five hundred and thirty-one thousand, four hundred and forty-one) is:
 * $3^{12}$


 * The $729$th square number:
 * $531 \, 441 = 729 \times 729$


 * The $81$st cube number:
 * $531 \, 441 = 81 \times 81 \times 81$


 * The $9$th $6$th power after $1$, $64$, $729$, $4096$, $15 \, 625$, $46 \, 656$, $117 \, 649$, $262 \, 144$:
 * $531 \, 441 = 9 \times 9 \times 9 \times 9 \times 9 \times 9$


 * The $12$th power of $3$ after $(1)$, $3$, $9$, $27$, $81$, $243$, $729$, $2187$, $6561$, $19 \, 683$, $59 \, 049$, $177 \, 147$:
 * $531 \, 441 = 3^{12}$


 * The $6$th power of $9$ after $(1)$, $9$, $81$, $729$, $6561$, $59 \, 049$:
 * $531 \, 441 = 9^6$