Positive Numbers Divisible by their Iterative Digit Sum Revisited

Positive Numbers Divisible by their Iterative Digit Sum Revisited

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This paper is about the existence of numbers divisible by their iterative digit sum (NDIDS). Three conjectures were proposed, firstly, 9 multiply a NDIDS produces a multiple NDIDS. Secondly, there are no 15 or more consecutive NDIDS in the sequence of positive integers. Lastly, all Niven numbers are also NDIDS but the converse is not true. The detailed composition, properties, sequences...
 
Published at Pacific Journal of Science and Technology
Volume 18
Issue 1
Pages 101-106
Published in 2017
 
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visit (http://www.akamaiuniversity.us/PJST18_1_101.pdf)
 
 
HI Okagbue; AA Opanuga; PE Oguntunde; GA Eze
Okagbue Hilary Izuchukwu » Hilary Izuchukwu Okagbue Obtained his B.Tech, M.Sc and Ph.D. degrees in Industrial Mathematics and Statistics from the Federal University of Technology, Owerri, University of Lagos, Covenant University in 2007, 2010 and 2019 respectively. His research interests include Data Analysis, Mathematical Statistics, Mathematical Cryptography and analysis of patterns in number theory. view full profile
Okagbue Hilary Izuchukwu
 
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