About the Number 1869 (one thousand eight hundred sixty-nine)

On 2 October 2009, Google morphed its logo to acknowledge the birth of Mohandas Karamchand Gandhi on 2 October 1869. Gandhi died on 30 January 1948.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   1869 is a natural, whole, integer
   1869 is odd
   1869 proper divisors are: 1,3,7,21,89,267,623,
   1869 is deficient (sum of divisors is 1011)
   1869 is unhappy
   1869 is not a Harshad number
   1869 is not prime
   1869 has the prime factors: 3*7*89 (sum=99)
   1869 is sphenic (had 3 unique prime factors)
   1869 sum of prime factors is: 99
   1869 is a lucky number
   1869 in octal is 03515
   1869 in hexadecimal is 0x74d
   1869 in binary is 11101001101 (is odious)
   1869 nearest square numbers: -20...67 (1849...1936 [44])
   sqrt(1869) = 43.2319
   ln(1869) = 7.53316
   log(1869) = 3.27161
   1869 reciprocal is .00053504547886570358480470840021
   1869! is inf
   1869 is 594.921 Pi years
   1869 is 93 score and 9 years
   1869 written as a Roman numeral is MDCCCLXIX

log₁₆(1869) = 2.71701271+, which when rounded to the nearest hundredth equals e (2.71828182+) rounded to the nearest hundredth (2.72).

log₁₁(1869) = 3.14157123+, which when rounded to the nearest ten thousandth equals pi (3.14159265+) rounded to the nearest ten thousandth (3.1416).

The difference between the year this nBAB was created (2009) and the year Gandhi was born (1869) equals the maximum number of characters (140) that can be contained in a tweet (i.e. Twitter posting).

Creator: Gerald Thurman [gdt@deru.com]
Created: 02 October 2009