About the Number 24 (twenty-four)

Barack Obama was elected the 44th President of the United States on 4 November 2008. While working on a BAB about the number 44, MathBabbler learned that 44 is a tribonacci number. MathBabbler didn't know about tribonacci numbers and he observed that 24 is also a tribonacci number.

More reasons for doing this BAB...

The digits of 42 (the "Answer to Life, the Universe, and Everything") reversed is 24.

When doing BARS (Basic Arithmetic Road Signs), 4! is often used to create the number 24.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   24 is a natural, whole, integer
   24 is even
   24 proper divisors are: 1,2,3,4,6,8,12,
   24 is abundant (sum of divisors is 36)
   24 is unhappy
   24 is a Harshad number
   24 is not prime
   24 is undulating
   24 has the prime factors: 2*2*2*3
   24 in octal is 030
   24 in hexadecimal is 0x18
   24 in binary is 11000 (is evil)
   24 nearest square numbers: -8...1 (16 [4]...25 [5])
   sqrt(24) = 4.89898
   ln(24) = 3.17805
   log(24) = 1.38021
   24 reciprocal is .04166666666666666666666666666666
   24! is 6.20448e+23
   24 is 7.63944 Pi years
   24 is 1 score and 4 years

24 in Roman numeral is XXIV.

24 is a tribonacci number.

The reciprocal of 24 rounded to the nearest thousandth is 42 thousandths.

Wikipedia tidbit: "The SI prefix for 10^24 is yotta (Y), and for 10^-24 is yocto (y). These numbers are the largest and smallest number to receive an SI prefix to date."

Wikipedia tidbit: "24 is the smallest number with exactly eight divisors."

A case of beer is 24 bottles of beer.

Two dozen foos is 24 foos. [Where foos represent whatever you want.]

One of MathBabbler's favorite Neil Young lyric is "24 and there's so much more..." from the song "Heart of Gold." Speaking of gold... 100% gold is 24 carets. MathBabbler also likes Stephen Stills' song titled "4 + 20," which starts with the lyric "4 and 20 years ago I come into this life." (i.e. Stills could have written "24 years ago..."

The song titled "24" by Jem was added to Songs With Numbers In Their Titles.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 05 November 2008