🌐EnglishEnglishDeutschFrançaisNederlandsSvenskaРусскийไทย中文日本語EntityQ1363568· pop 19· linked from 233 articlesdigit sumsum of a number's digitsWikidata factsImageQuersumme.pngSources (1)wikidata.orgvia Wikidata · CC0Available in 19 languagesFrançaisDeutsch中文日本語РусскийChuvashCzechDanishEstonianIcelandicNederlandsConnectionsprime numberEntitybinary numeral systemEntityCategoriesAdditionArithmetic dynamicsBase-dependent integer sequencesNumber theory