Answer
$10^{-6}$
Work Step by Step
The meaning of the prefix micro is 1/1,000,000 so if 1 micrometer is converted to meters, the answer will be 0.000001 or $10^{-6}$ meter.
1 micrometer $\times$ $\frac{1 meter}{1,000,000 micrometer}$ = 0.000001 or $10^{-6}$ m.