Citation:Hare, K. G. , Laishram, S. , & Stoll, T. . (2011). The sum of digits of n and n2. Int. J. Number Theory, 7(7), 1737–1752. doi:10.1142/S1793042111004319Download CitationDOI BibTex Tagged XML Abstract:Notes:Publisher's VersionLast updated on 05/03/2017 DOI