About the Number 911 (nine hundred eleven)

This number BAB was created on the 7th anniversity of 911 (i.e. 11 September 2001).

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   911 is a natural, whole, integer
   911 is odd
   911 proper divisors are: 1
   911 is deficient (sum of divisors is 1)
   911 is unhappy
   911 is not a Harshad number
   911 is prime
   ...Cousin prime with 907
   ...Sophie Germain prime with 1823
	...OEIS:002145 (4n+3; n=227)
   911 in octal is 01617
   911 in hexadecimal is 0x38f
   911 in binary is 1110001111 (is odious)
   911 nearest square numbers: -11...50 (900 [30]...961 [31])
   sqrt(911) = 30.1828
   ln(911) = 6.81454
   log(911) = 2.95952
   911 reciprocal is .00109769484083424807903402854006
   911! is 2.27959e+2302
   911 is 289.98 Pi years
   911 is 45 score and 11 years

911 in Roman numeral is CMXI.

911 is the emergency telephone number in the U.S.

911 = (112)2 * 102 + 101 + 100

Update::2010.01.20

MathBabbler was checking stock quotes and he saw that Google (nasdaq: GOOG) was down $9.11. 9.11 is not 911, but is centi-911 (i.e. 10^-2*911).

[NumDic.com] 911 = 456^2 - 455^2 and 456 + 455 = 911

[exercise: solve for n] 9.11 = 911 / n

[exercise: solve for (112)2] 911 = (112)2 * 102 + 101 + 100


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 11 September 2008

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