3795
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Number
$3795$ (three thousand, seven hundred and ninety-five) is:
- $3 \times 5 \times 11 \times 23$
- The $22$nd square pyramidal number after $1$, $5$, $14$, $30$, $55$, $\ldots$, $1015$, $1240$, $1496$, $1785$, $2109$, $2470$, $2870$, $3311$:
- $3795 = \ds \sum_{k \mathop = 1}^{22} k^2 = \dfrac {22 \paren {22 + 1} \paren {2 \times 22 + 1} } 6$