2673

Number
$2673$ (two thousand, six hundred and seventy-three) is:
 * $3^5 \times 11$


 * The $33$rd heptagonal number after $1$, $7$, $18$, $34$, $5$, $81$, $112$, $\ldots$, $1525$, $1651$, $1782$, $1918$, $2059$, $2205$, $2356$, $2512$:
 * $2673 = \displaystyle \sum_{k \mathop = 1}^{33} \paren {5 k - 4} = \dfrac {33 \paren {5 \times 33 - 3} } 2$