1. Digit sumIn mathematics, the digit sum of a given integer is the sum of all its digits, . Digit sums are most often computed using the decimal representation of the given number, but they may be calculated in any other base; different bases give different digit sums, with the digit sums for binary being on average smaller than those for any other base. Let S(r,N) be the digit sum for radix r of all non-negative integers less than N.
Read “Digit sum” on English Wikipedia
Read “数字和” on Japanese Wikipedia
Read “Digit sum” on DBpedia
Read “Digit sum” on English Wikipedia
Read “数字和” on Japanese Wikipedia
Read “Digit sum” on DBpedia
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