About the Number 2011 (two thousand eleven)

This nBAB for the number 2011 was created on 1 January 2011.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   2011 is a natural, whole, integer
   2011 is odd
   2011 proper divisors are: 1,
   2011 is deficient (sum of divisors is 1)
   2011 is unhappy
   2011 is not a Harshad number
   2011 is prime
   ...Sexy prime with 2017
   ...OEIS:002145 (4n+3; n=502)
   ...Left-truncatable
   2011 is the sum of 11 consecutive primes
   2011 = 157 + 163 + 167 + 173 + 179 + 181 + 191 + 193 + 197 + 199 + 211
   2011 in octal is 03733
   2011 in hexadecimal is 0x7db
   2011 in binary is 11111011011 (is odious)
   2011 nearest square numbers: -75...14 (1936...2025 [45])
   sqrt(2011) = 44.8442
   ln(2011) = 7.60639
   log(2011) = 3.30341
   2011 reciprocal is .00049726504226752859273993038289
   2011! is inf
   2011 is 640.121 Pi years
   2011 is 100 score and 11 years
   2011 written as a Roman numeral is MMXI
   2011 = 1006^2 - 1005^2 and 1006 + 1005 = 2011
Side-bar: Tidbit About Prime Numbered Years

The following are prime numbered years in 21st century: 2003, 2011, 2017, 2027, 2029, 2039, 2053, 2063, 2069, 2081, 2083, 2087, 2089 and 2099. The first prime numbered year in the 22nd century is 2111.


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 01 January 2011

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