989270000Pa
In telling a quantity, we use measuring units( meter for length, second for time, etc.) But, it’s not easy to write down all the numbers we have all the time. For an example, we can’t work with maths like ##8000000000 * 0.0000000000002## meters all the time, not because it is wrong or something, but because it’s unpractical. Therefore we use prefixes to imply the powers of ten:
kilo = k = ##10^3##
Mega = M = ##10^6##
Giga = G = ##10^9##
So, when you say 989.27 MPa it means ##989.27 * 10^6Pa##. So,
##989.27 MPa=989.27 * 10^6Pa=989270000Pa##
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