Answer
$1524$
Work Step by Step
The expanded form of $2073_{\text{nine}}$ is:
$=(2 \times 9^3) + (0\times 9^2)+(7 \times 9^1) + (3 \times 1)
\\=(2\times 729) + 0 + (7 \times 9)+3
\\=1458+63 +3
\\=1524$
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