About the Number 2647 (two thousand six hundred forty-seven)

This nBAB for the number 2647 was the last BAB posted in 2009 and it was BAB# 2647.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   2647 is a natural, whole, integer
   2647 is odd
   2647 proper divisors are: 1,
   2647 is deficient (sum of divisors is 1)
   2647 is unhappy
   2647 is not a Harshad number
   2647 is prime
   ...OEIS:002145 (4n+3; n=661)
   ...Super
   ...Left-truncatable
   2647 is a lucky number
   2647 is the sum of 29 consecutive primes
         29 + 31 + 37 + 41 + 43 + 47 + 53 + 59 + 61 + 67 + 71 + 
          73 + 79 + 83 + 89 + 97 + 101 + 103 + 107 + 109 + 113 + 
          127 + 131 + 137 + 139 + 149 + 151 + 157 + 163
   2647 in octal is 05127
   2647 in hexadecimal is 0xa57
   2647 in binary is 101001010111 (is odious)
   2647 nearest square numbers: -46...57 (2601...2704 [52])
   sqrt(2647) = 51.449
   ln(2647) = 7.88118
   log(2647) = 3.42275
   2647 reciprocal is .00037778617302606724593879863996
   2647! is inf
   2647 is 842.566 Pi years
   2647 is 132 score and 7 years
   2647 written as a Roman numeral is MMDCXLVII

2647 = 1324^2 - 1323^2 and 1324 + 1323 = 2647.


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 31 December 2009

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