Arithmetic dynamics | Base-dependent integer sequences | Number theory | Diophantine equations

Kaprekar number

In mathematics, a natural number in a given number base is a -Kaprekar number if the representation of its square in that base can be split into two parts, where the second part has digits, that add up to the original number. The numbers are named after D. R. Kaprekar. (Wikipedia).

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Magic number 6174 and Kaprekar's Operation on 4-digit Integers

#shorts #mathonshorts check out information on Kaprekar's operation from the wiki page: https://en.wikipedia.org/wiki/Kaprekar%27s_routine All 4-digit numbers will go to 6174 after a few steps of Kaprekar's operation.

From playlist Elementary Number Theory

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Kaprekar’s Constant: A Mathematical Curiosity #shorts

Check out my main channel @polymathematic! Kaprekar's Constant is actually a family of constants that recur over and over again given a certain number of digits to start with. The process works as described: begin with some four-digit number. Then re-arrange the digits in both ascending

From playlist polymathematic #shorts

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6174 - Numberphile

6174 is also known as Kaprekar's Constant. More links & stuff in full description below ↓↓↓ This video features University of Nottingham physics professor Roger Bowley, who is also featured on our Sixty Symbols channel at http://www.youtube.com/sixtysymbols NUMBERPHILE Website: http://ww

From playlist From Numberphile

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Kaprekar's Operation on 6-digit Integers

#shorts #mathonshorts check out information on Kaprekar's operation from the wiki page: https://en.wikipedia.org/wiki/Kaprekar%27s_routine

From playlist Elementary Number Theory

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Kaprekar's Constant? | #Shorts #YouTubeShorts | Don't Memorise

What is Kaprekar's Constant? Watch this video to know more... Don’t Memorise brings learning to life through its captivating educational videos. To Know More, visit https://infinitylearn.com/ New videos every week. To stay updated, subscribe to our YouTube channel: http://bit.ly/DontMemo

From playlist Shorts

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Kephrii plays against Kabaji!

Thank you for watching! This game is from 12/31/2018. Please hit the thumbs up button to like this video & please subscribe to my channel for more content! It really does help me a lot! :) Kephrii Merchandise! ♡ https://metathreads.com/collections/kephrii ★ Social Media http://www.Twitch

From playlist THE VLOG

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Kaggle: How to Place in the Top 10% (part 1)

This is the first part, in a series where I will discuss some techniques for placing in the top 10% that I've used in two Kaggle competitions using just a laptop and no cloud. I made use of Python, Scikit-Learn, XGBoost, and TensorFlow. I will also be covering some of the Python code tha

From playlist Kagglers on YouTube | Kaggle

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Special Topics - The Kalman Filter (30 of 55) 4. Calculate the Kalman Gain - Tracking Airplane

Visit http://ilectureonline.com for more math and science lectures! In this video I will calculate the Kalman Gain matrix of the Kalman Filter of tracking an airplane. Next video in this series can be seen at: https://youtu.be/_9qhtXqaT8c

From playlist SPECIAL TOPICS 1 - THE KALMAN FILTER

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MegaFavNumbers - A number with 19729 digits

This video is about my MegaFavNumber. It has 19729 digits, and it is a power of two. [This link is now broken, and I can't find it anywhere else. :( ] See all the digits here: https://sites.google.com/site/largenumbers/home/appendix/a/numbers/265536 The OEIS sequence I mentioned: https:/

From playlist MegaFavNumbers

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How is i equal to square root of -1?

What is 'i'? More importantly, what is a complex number? How are complex numbers relevant to the context of other familiar numbers? Chapters: 00:00 Introduction 01:46 Logo of Reals and Rationals 02:11 Expanding real numbers 03:25 Motivation using whole (natural) numbers 06:08 Planar numb

From playlist Summer of Math Exposition 2 videos

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Fun with Math: Surprises with Arithmetic and Numbers

Stephen Wolfram shows kids and adults some fun unique things you can do with math. All demonstrations powered by the Wolfram Language. Originally livestreamed at: https://twitch.tv/stephen_wolfram Follow us on our official social media channels: Twitter: https://twitter.com/WolframRese

From playlist Stephen Wolfram Livestreams

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How to understand the REAL NUMBER LINE - COLLEGE ALGEBRA

In this video we talk about natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. We also show the real number line and the inequalities less than and greater than. 00:00 Intro 00:29 Number system 04:53 Visual representation of numbers 07:37 Rea

From playlist College Algebra

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Real Numbers

This video provides a basic introduction into real numbers. It explains how to distinguish them from imaginary numbers. It also discusses the difference between rational and irrational numbers as well as integers, natural numbers, and whole numbers. Examples include repeating and non-re

From playlist New Algebra Playlist

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What are Isotopes?

This chemistry video tutorial answers the question - what are isotopes? Isotopes are substances that are composed of the same element but consist of different mass numbers and number of neutrons. They share the same atomic number and therefore the same number of protons. This video cont

From playlist New AP & General Chemistry Video Playlist

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Special Topics - The Kalman Filter (27 of 55) 1. The Predicted State - Tracking Airplane

Visit http://ilectureonline.com for more math and science lectures! In this video I will calculate the predicted state of the Kalman Filter of tracking an airplane given v(0x)=280m/s x(0)=4000m. Next video in this series can be seen at: https://youtu.be/Jm6OIadu6FY

From playlist SPECIAL TOPICS 1 - THE KALMAN FILTER

Related pages

Automorphic number | Journal of Recreational Mathematics | Kaprekar's routine | Periodic point | Fixed point (mathematics) | Unitary divisor | Dudeney number | Factorion | Periodic sequence | Sum-product number | D. R. Kaprekar | Signed-digit representation | Arithmetic dynamics | Journal of Integer Sequences | Happy number | Iterated function | Meertens number | Natural number | Mathematics | Perfect digital invariant | Integer | Cycle detection | Bijection | Perfect digit-to-digit invariant | Perfect number | Diophantine equation | Persistence of a number | Modular multiplicative inverse | Narcissistic number