2673

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


 * The $33$rd heptagonal number after $1, 7, 18, 34, 55, 81, 112, \ldots, 1525, 1651, 1782, 1918, 2059, 2205, 2356, 2512$:
 * $2673 = \displaystyle \sum_{k \mathop = 1}^{33} \left({5 k - 4}\right) = \dfrac {33 \left({5 \times 33 - 3}\right)} 2$