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Today is Day 144 of 2013

144

is the only square in the Fibonacci sequence (apart from 1). Moreover, it is the 12th term of the Fibonacci sequence.

Reversing 12 and 144 in the equality 122 = 144 gives 441 = 212.

144 = (1 + 4)! + 4!

1445 = 275 + 845 + 1105 + 1355

= 71 + 73 (sum of consecutive primes)
= 3! x 4! = 4! + 5!
= 42 + 2 x 82
= 62 + 3 x 62

One of the largest numbers, that is not a power of 10, that has a specific name: 'gross' (= dozen dozen).

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




144

Today is day number   of 2013. Below are various representations of the number 144, some dating thousands of years, and some very modern.

Chinese

Egyptian

Mayan

 

Babylonian

Greek

Abacus

Roman

 

Hex

 

Binary

 

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

 

 



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