EntityQ2623827· pop 15· linked from 294 articlesself numberSign in to savea natural number that cannot be written as the sum of any other natural number n and the individual digits of nConnectionsPerrin numberEntityprime numberEntityradixEntitylist of prime numbersEntityfigurate numberEntityLucas numberEntityPell numberEntityautomorphic numberEntitySmarandache–Wellin numberEntityStrobogrammatic numberEntityIndiaCountryInternational Standard Book NumberEntitynatural numberEntitycomplex numberEntity11EntityQ37141Entitynumber theoryEntitymathematicianEntity20Entity17EntityCategoriesArithmetic dynamicsBase-dependent integer sequencesInverse functions