In a stem-cell biology study, a single human neural stem cell is cultured in vitro to form a spherical cluster of cells called a neurosphere through synchronous mitotic divisions.
After 5.5 days of incubation, the neurosphere has a total volume of 1.28 × 10-2 mm3.
Calculate the mean volume of a single cell in the neurosphere after 5.5 days. Express your answer in standard form.
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