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

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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Publication Details

Journal
The Mathematical Gazette
Published
2026-10-19
DOI
https://doi.org/10.1080/00255572.2026.2744869
Primary Topic
Advanced Mathematical Theories
Type
article
Field-Weighted Citation Impact
0.00
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article

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

S. C. Dutta Roy
The Mathematical Gazette
Advanced Mathematical Theories
article

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

S. C. Dutta Roy
article en

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...

The Mathematical Gazette
Indian Institute of Technology Delhi (IN)
Openalex Percentile: Top 7%
Advanced Mathematical Theories
DOISourceOpenAlex
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On a number the sum of whose digits is its square root — S. C. Dutta Roy · The Mathematical Gazette (2026) | TGRS Research Map | TGRS