4324

Number
$4324$ (four thousand, three hundred and twenty-four) is:


 * $2^2 \times 23 \times 47$


 * The $23$rd square pyramidal number after $1$, $5$, $14$, $30$, $55$, $\ldots$, $1015$, $1240$, $1496$, $1785$, $2109$, $2470$, $2870$, $3311$, $3795$:
 * $4324 = \displaystyle \sum_{k \mathop = 1}^{23} k^2 = \dfrac {23 \left({23 + 1}\right) \left({2 \times 23 + 1}\right)} 6$