1*1015*4*1027 = 4*1042
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In scientific notation four octillion is 4 * 10^27
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In countries that use the long scale (based on powers of a million) like Europe:1 quadrillion = (1 million)4 = (106)4= 1 x 1024In countries that use the short scale (based on powers of a thousand plus one) like USA:1 quadrillion = (1 thousand)4+1 = (103)5= 1 x 1015
10,0004 = 10,000,000,000,000,000 or 10 quadrillion.
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