Chikawa, K.; Iseki, K.; Kusakabe, T. On a problem by H. Steinhaus. (English) Zbl 0104.26703 Acta Arith. 7, 251-252 (1962); Ibid. 8, 259 (1963). Reviewer: Christian U. Jensen (København) Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 Documents MSC: 11A63 Radix representation; digital problems Keywords:number theory PDFBibTeX XMLCite \textit{K. Chikawa} et al., Acta Arith. 7, 251--252 (1963; Zbl 0104.26703) Full Text: DOI EuDML Online Encyclopedia of Integer Sequences: Sum of 4th powers of digits of n.