Today is Day 83 of 2019
is the number of zeroless squares that are composed of the digits 1 up to 9. - Beilier
= 11 + 31 + 41 (sum of the first 3 primes ending with 1)
it seems there are over 1083 elementary particles with non-zero mass in the known universe.
Many thanks are extended to Archimedes' Lab for their information.
Today is day number of 2019. Below are various representations of the number 83, some dating thousands of years, and some very modern.
Many thanks are extended to Jo Edkins for her wonderful work.