About the Number 350 (three hundred fifty)

October 24th is "International Day of Climate Action" and its website is 350.org.

The 350.org FAQ says 350 is used because it is the number that "leading scientists say is the safe upper limit for carbon dioxide--measured in 'Parts Per Million' in our atmosphere."

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   350 is a natural, whole, integer
   350 is even
   350 proper divisors are: 1,2,5,7,10,14,25,35,50,70,175,
   350 is abundant (sum of divisors is 394)
   350 is unhappy
   350 is not a Harshad number
   350 is not prime
   350 has the prime factors: 2*5*5*7 (sum=19)
   350 sum of prime factors is: 19
   350 in octal is 0536
   350 in hexadecimal is 0x15e
   350 in binary is 101011110 (is evil)
   350 nearest square numbers: -26...11 (324...361 [19])
   sqrt(350) = 18.7083
   ln(350) = 5.85793
   log(350) = 2.54407
   350 reciprocal is .00285714285714285714285714285714
   350! is 1.23587e+740
   350 is 111.408 Pi years
   350 is 17 score and 10 years
   350 written as a Roman numeral is CCCL

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 24 October 2009

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 United States License.