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October 19, 2026The Mathematical Gazette

On a number the sum of whose digits is its square root

S. C. Dutta Roy

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Abstract

In [1], Oxman and Stupel set out to answer the following question: Besides 81, are there other numbers, the sum of whose digits is its square root? To this end, they proved a theorem which restrict...

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Cite This Study

S. C. Dutta Roy (2026) studied this question.

synapsesocial.com/papers/6ad855e4c31ae80836fdb81f https://doi.org/10.1080/00255572.2026.2744869

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Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1Perfect Squares from the Radicals of Consecutive IntegersOriginal Research · 2026
2Sums of squares of integers except for a fixed one2025
3Square Root of Natural Numbers as an infinite Staircase of Continued Fractions2026
4On sums of powers of consecutive squares over finite fields, and sums of distinct values of polynomials2025
5Sums of three positive cubesOriginal Research · 2026

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