143 (number)

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142143144
Cardinalone hundred and forty-three
Ordinal143rd
(one hundred and forty-third)
Factorization11 · 13
Divisors1, 11, 13, 143
Roman numeralCXLIII
Binary100011112
Ternary120223
Quaternary20334
Quinary10335
Senary3556
Octal2178
DuodecimalBB12
Hexadecimal8F16
Vigesimal7320
Base 363Z36
 
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142143144
Cardinalone hundred and forty-three
Ordinal143rd
(one hundred and forty-third)
Factorization11 · 13
Divisors1, 11, 13, 143
Roman numeralCXLIII
Binary100011112
Ternary120223
Quaternary20334
Quinary10335
Senary3556
Octal2178
DuodecimalBB12
Hexadecimal8F16
Vigesimal7320
Base 363Z36

143 is the natural number following 142 and preceding 144.

In mathematics[edit]

143 is the sum of seven consecutive primes (11 + 13 + 17 + 19 + 23 + 29 + 31). But this number is never the sum of an integer and its base 10 digits, making it a self number.

Every positive integer is the sum of at most 143 seventh powers (see Waring's problem).

143 is the difference in the first exception to the pattern shown below:

3^2+4^2=5^2
3^3+4^3+5^3=6^3
3^4+4^4+5^4+6^4=7^4-143

In the military[edit]

In transportation[edit]

In media[edit]

In popular culture[edit]

In other fields[edit]

143 is also:

See also[edit]

References[edit]

  1. ^ Hattikutur, Mangkesh. "15 reasons Mr. Rogers was best neighbor ever." http://www.cnn.com/2008/LIVING/wayoflife/07/28/mf.mrrogers.neighbor/ Mental Floss/CNN. 28 Jul 2008.
  2. ^ Nan Cross: Supported men resisting apartheid conscription Sunday Times (South Africa), 2007-07-22, accessed 2009-01-05.
  3. ^ http://www.cnn.com/2003/EDUCATION/11/14/wheaton.dance.ap/index.html Archived May 11, 2008 at the Wayback Machine

External links[edit]