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123 (number)

From Wikipedia, the free encyclopedia
← 122 123 124 →
Cardinalone hundred twenty-three
Ordinal123rd
(one hundred twenty-third)
Factorization3 × 41
Divisors1, 3, 41, 123
Greek numeralΡΚΓ´
Roman numeralCXXIII
Binary11110112
Ternary111203
Senary3236
Octal1738
DuodecimalA312
Hexadecimal7B16

123 (one hundred [and] twenty-three) is the natural number following 122 and preceding 124.

In mathematics

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  • 123 is a Lucas number.[1] It is the eleventh member of the Mian–Chowla sequence.[2]
  • Along with 6, 123 is one of only two positive integers that is simultaneously two more than a perfect square and two less than a perfect cube (123 = 112 + 2 = 53 - 2).[3]
  • 123 is the first whole number containing numbers from 1 to 3.

In religion

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The Book of Numbers says that Aaron died at the age of 123.[4]

In numerology, the sequence of 123 is associated with progress and the Holy Trinity, so it may be referred to as the Trinity of Progress or Triad of Progress.[5]

In telephony

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In other fields

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123 is also:

See also

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References

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  1. ^ Friedman, Erich (30 April 2005). "What's Special About This Number?". Stetson University. Archived from the original on 10 February 2010. Retrieved 2010-02-08.
  2. ^ "Mian-Chowla Sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. 2016-04-19. Retrieved 2016-04-19.
  3. ^ Conrad, Keith. "Examples of Mordell's Equation" (PDF). University of Connecticut, Mathematics Department. Retrieved 2017-06-24.
  4. ^ Numbers 33:39
  5. ^ "123 Angel Number: What It Means & What to do when You See It".