43 Fun Facts About the Number 43

In honor of my 43rd birthday, here are 43 fun facts about the number 43:

  1. 43 is the natural number following 42 and preceding 44.
  2. 43 is an odd number.
  3. 43 is a prime number.
  4. 43 is a twin prime with the number 41.
  5. 43 is the smallest prime number expressible as the sum of 2, 3, 4, or 5 different primes.
  6. 43 is the smallest prime number that is not a Chen prime.
  7. 43 is the third Wagstaff prime.
  8. 43 is a centered heptagonal number.
  9. 43 is a Heegner number.
  10. 43 is the largest number than is not a McNugget number.
  11. 43 is a repdigit in base 6 (111).
  12. 43 is the fourth term of Sylvester’s sequence.
  13. 43 is a deficient number.
  14. 43 is an evil number.
  15. 43 is the smallest non-palindromic prime which on subtracting its reverse gives a perfect square: 43 – 34 = 32
  16. 43  is the number of notes in Harry Partch’s 43-tone scale.
  17. Movie 43 is a 2013 comedy film.
  18. “The 43 Peculiarity” is an episode of  the television show The Big Bang Theory.
  19. Agent 43 is one of the main villains on the television show The Odd Squad.
  20. Number 43, in Sonnets from the Portuguese, is one of Elizabeth Barrett Browning’s most famous poems.
  21. Interstate 43 is a freeway in Wisconsin.
  22. “43” is a song by the jazz-funk band Level 42.
  23. “43” is also a song by the metal band Mushroomhead.
  24. 43 is the name of a popular Spanish liqueur.
  25. Roman politician and author Cicero was murdered in the year 43 BC
  26. The Roman conquest of Britain began in the year AD 43.
  27. 43 is the atomic number for technetium.
  28. The Messier object M43 is magnitude 7.0 region in the constellation Orion, also known as de Marian’s Nebula.
  29. The New General Catalogue object NGC 43 is a barreled spiral galaxy in the constellation Andromeda.
  30. The Church of England has 43 cathedrals.
  31. 43 muscles are needed to frown.
  32. The Roman numeral for 43 is XLIII.
  33. George W. Bush was the 43rd president.
  34. There are 43 verses in the Old English epic poem Beowulf.
  35. Londinium (now London) was founded by the Romans in AD 43.
  36. NASCAR races begin with 43 cars and drivers.
  37. Pope Celestine I was the 43rd pope.
  38. Idaho was the 43rd state to be admitted to the Union.
  39. 43 is the calling code assigned to Austria.
  40. 43 is the jersey number of baseball player Dennis Eckersley.
  41. In Chinese folklore 43 symbolically represents the principle of deliverance or change.
  42. 43 is the car number currently driven by NASCAR driver Richard Petty.
  43. 43 in binary is 101011.

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