+4e7 represents forty million (40,000,000), a significant [Magnitude](/wiki/magnitude) frequently encountered in [Scientific Notation](/wiki/scientific_notation). This large integer marks a substantial quantity, crucial for understanding vast datasets or cosmic scales within various fields.
+## See also
+- [Large Numbers](/wiki/large_numbers)
+- [Scale](/wiki/scale)
+- [Quantity](/wiki/quantity)
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