Numbers 40,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

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40,000

[Biology]  The number of genes in a human being: 30,000-40,000.

[Sport]  The exact distance (m, meters) of the first marathon race at the first modern 1896 Olympic Games (Athens, Greece). It was standardized in the 1924 Olympic Games (Paris, France) at 42.195 km, to be the length first run during the 1908 Olympic Games (London, England). It is not an even distance in either kilometers or miles (26 miles 385 yards).

[Trivia]  The NSA produces about 40,000 lb a day in shredded documents.

40,007

[Geology]  The circumference (miles) of the Earth along the Equator 24,901.55 miles (40,075.16 km). The circumference (miles) of the Earth crossing the poles is 24859.2 miles (40,007 km).

40,033

[Math.]  40033 = 343+93 = 333+163.

40,075.16

[Geology]  The circumference (miles) of the Earth along the Equator 24,901.55 miles (40,075.16 km). The circumference (miles) of the Earth crossing the poles is 24859.2 miles (40,007 km).

40,173

[Math.]  Two multiples of number 5739, 5739×5 = 28,695 and 5739×7 = 40,173, use each of 10 digits 0-9 once.

40,241

[Zip]  U.S. Postal Zip Code: Ten Broeck, Kentucky 40241.

40,320

[Calendar]  The number of minutes in 4 weeks or in February of a non-leap year.

[Math.]  8 factorial = 8! = 1×2×…×7×8 = 40,320.

[Math.]  Sum (in degrees) of all internal angles of a 226-side polygon.

40,391

[Math.]  The 7th square number that is also a triangular number: 40,3912 = 1+2+…+57,121 = 1,631,432,881. Each root number in the series is 6 times the previous root number minus the earlier root number: 1, 62, 352, 2042, 11892

40,401

[Math.]  Four square numbers using the same digits: 1022 = 10404, 1202 = 14400, 2012 = 40401 and 2102 = 44100. Reversible numbers and their squares: 1022 = 10404 and 2012 = 40401.

Squares and cubes of 2 numbers using the same digits: 1022 = 10404 and 2012 = 40401 & 1023 = 1,061,208 and 2013 = 8,120,601.

40,444

[Zip]  U.S. Postal Zip Code: Lancaster, Kentucky 40444.

40,456

[Zip]  U.S. Postal Zip Code: Threelinks, Kentucky 40456.

40,545

[Math.]  405452 = 1,643,897,025, a square number using each of 10 digits 0-9 once.

40,585

[Math.]  40,585 = 4!+0!+5!+8!+5!. The only other non-trivial such number is 145 = 1!+4!+5!.

40,625

[Math.]  Its odd powers end with 40,625. Its even powers end with 90,625.

40,828

[Zip]  U.S. Postal Zip Code: Ten Spot, Kentucky 40828.

40,895

[Math.]  Two multiples of number 8179, 8179×4 = 32,716 and 8179×5 = 40,895, use each of 10 digits 0-9 once.

40nnn

[Zip]  U.S. Postal Zip Codes of Kentucky: 40nnn-42nnn.

4nnnn

[Zip]  U.S. Postal Zip Codes of Kentucky: 40nnn-42nnn, Ohio: 43nnn-45nnn, Indiana: 46nnn and 47nnn and Michigan: 48nnn and 49nnn.