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Today is Day 140 of 2019

140

is the smallest harmonic divisor number:
12 / (1/1 + 1/2 + 1/4 + 1/5 + 1/7 + 1/10 + 1/14 + 1/20 + 1/28 + 1/35 + 1/70 + 1/140) = 5

= 12 + 22 + 32 + 42 + 52 + 62 + 72

140 litres of water are needed to produce 1 cup of coffee (125 ml)!

Many thanks are extended to Archimedes' Lab for their information.




140

Today is day number   of 2019. Below are various representations of the number 140, some dating thousands of years, and some very modern.

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Chinese

Egyptian

Mayan

 

Babylonian

Greek

Abacus

Roman

 

Hex

 

Binary

 

Many thanks are extended to Jo Edkins for her wonderful work.

 



 

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