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9 years, 1 month ago
What is the sum of digits in multiplication 202*20002*200000002*20000000000000002*200000000000000000000000000000002 (31 zeroes in the last term)
9 years, 1 month ago
32032032032032032032032....last digit 32, 31 times 0 and 32 times 32
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