2016502858579884466176 - Numberphile

Tony Padilla on Harshad Numbers. Learn for free on Brilliant (and get 20% off a premium subscription) at https://brilliant.org/numberphile (episode sponsor). More links & stuff in full description below ↓↓↓ Extra footage from this interview can be found on Numberphile2 - https://youtu.be/iGEC1FH5yBU Harshad Numbers are also known as Niven Numbers. Tony Padilla's book Fantastic Numbers and Where to Find Them - https://amzn.to/3VywNyy More from Tony on Numberphile - https://www.youtube.com/playlist?list=PLt5AfwLFPxWL8KAJKO3WfHhJcWrJfjgfU Plus Tony on Sixty Symbols - https://www.youtube.com/…