About the Number 1947 (one thousand nine hundred forty-seven)

The transistor was demonstrated to Bell Lab officials on 23 December 1947.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   1947 is a natural, whole, integer
   1947 is odd
   1947 proper divisors are: 1,3,11,33,59,177,649,
   1947 is deficient (sum of divisors is 933)
   1947 is unhappy
   1947 is not a Harshad number
   1947 is not prime
   1947 has the prime factors: 3*11*59 (sum=73)
   1947 is sphenic (had 3 unique prime factors)
   1947 sum of prime factors is: 73
   1947 is ThurmNumber
   1947 is the sum of 27 consecutive primes
        17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 
         59 + 61 + 67 + 71 + 73 + 79 + 83 + 89 + 97 + 101 + 
         103 + 107 + 109 + 113 + 127 + 131 + 137
   1947 in octal is 03633
   1947 in hexadecimal is 0x79b
   1947 in binary is 11110011011 (is evil)
   1947 nearest square numbers: -11...78 (1936...2025 [45])
   sqrt(1947) = 44.1248
   ln(1947) = 7.57405
   log(1947) = 3.28937
   1947 reciprocal is .00051361068310220852593733949666
   1947 is an apocalyptic power
   1947! is inf
   1947 is 619.749 Pi years
   1947 is 97 score and 7 years
   1947 written as a Roman numeral is MCMXLVII

1947 = 974^2 - 973^3 and 974 + 973 = 1947


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 23 December 2009

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