All 22.4 Trillion Digits of My Pi World Record

Pi is not only 3.1415926535. Get all digits of my pi world record to create music, visualisations, games or scientific publications.

Computing trillion of digits of pi is challenging. The main bottleneck is the throughput with which you can store and access intermediate results of the computation on disk. For my world record in November 2016, colleagues at Dectris helped me to set up a storage with 24 disks which operated in parallel. Each disk had a storage capacity of 6 TB so that a total of 144 TB disk space was available. With this setup, I successfully computed 22.4 trillion digits of pi, which was a new world record at that time. All decimal digits are now available in the download section. If you need ideas for what to do with all these digits of pi, have a look at these inspirations.

Small data sets

If you’re only interested in the first thousand or the first million digits of pi, you can download them as text files (.txt) directly from the links below. Data sets with more digits are available from archive.org and from Google drive.

The one trillion digit data set

In November 2016 I made a data set with one trillion decimal digits available for download. The digits are saved as zip-compressed text files in chuncks of one hundred billion digits. Each file has a size of 43.7 Gigabytes. In total you have to download more than 430 Gigabytes.

All 22 459 157 718 361 decimal digits

Since February 2019 you can download all decimal digits from my Google drive account at Dectris. These are the original files from my world record computation in the compressed format of y-cruncher. You need to compile the DigitViewer provided by A. Yee in order to read these files. Each file contains 200 billion digits and has a size of 78 Gigabytes. The total size is 8.8 Terabytes. If you encounter permission issues, this could be due to restrictions imposed by your domain administrator. I have verified that the files can be accessed when not being logged in with a google account.

Download up to 22.4 trillion digits of pi

Digits of Pi	Decimal	Hexadecimal	Format
Ten (10)	3.1415926535	3.243f6a8885
One Thousand (103)	pi_dec_1k.txt	pi_hex_1k.txt	Text file
One Million (106)	pi_dec_1m.txt	pi_hex_1m.txt	Text file
One Billion (109)	archive.org/…/Math_Constants	archive.org/…/pi_hex_1b	Compressed text file
One Trillion (1012)	archive.org/…/pi_dec_1t	not available	Compressed text files
All Digits	drive.google.com/…XbKhLy	drive.google.com/…y3Z	Compressed binary files (.ycd)

More about my World Record

What to do with the digits of π?

With the digits of pi you can do more than calculating a circle’s circumference or area. If you need some inspiration about what you could do with all these digits of pi, here are some sites to look at:

Visualisations

Random walk based on pi: pi2e.ch/blog/2016/07/11/the-pi-protein/
3D scroll with the decimal digits of pi: pi2e.ch/blog/2017/07/14/the-pi-scroll/
Pi art by M. Krzywinski: mkweb.bcgsc.ca/pi/art/
Pi graphics by Cristian Vasile: fineartamerica.com/profiles/cristian-vasile

Music

Pentatonic pi music: www.youtube.com/watch?v=HV1-AjwDJwM
Pi on a harmonic scale: www.youtube.com/watch?v=wM-x3pUcdeo
Pi symphony: www.pisymphony.com/gpage.html

Science

Normality test of pi: arxiv.org/abs/1612.00489v1
Fractal analysis of pi: arxiv.org/abs/1608.00430
Pi as random number generator: worldcomp-proceedings.com/proc/p2015/CSC2676.pdf

Fun

My own little game: pi2e.ch/blog/2018/11/08/the-pi-game/
Memorize digits of pi: www.sporcle.com/games/g/pi
Pi search: www.angio.net/pi/digits.htm
Pie decoration on pi day: www.buzzfeed.com/…-pie-ideas-recipes
Print one million digits on a mile long paper: www.youtube.com/watch?v=0r3cEKZiLmg
Publish a book with the digits of pi: 3.141….eu/mein-pi-buch/

10000 Colored Digits of Pi