About the Number 93 (ninety-three)

MathBabbler started reading Atlas Shrugged during the 2008-09 Winter Break 2008, but as of the end of January 2009 he was only one-third of the way through the book. The following is from page 324 of Atlas Shrugged, "Dagney drew a black line across Train Number 93 on the schedule, [...]." Later, at the end of the same paragraph, "Train Number 93 was a freight that had earned its living by carrying supplies to Hammondsville, Colorado." [Note: Page 314 was blank. 314 divided-by 100 equals Pi rounded to the nearest hundredth.]

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   93 is a natural, whole, integer
   93 is odd
   93 proper divisors are: 1,3,31,
   93 is deficient (sum of divisors is 35)
   93 is unhappy
   93 is not a Harshad number
   93 is not prime
   93 is undulating
   93 has the prime factors: 3*31
   93 is semiprime (biprime or 2-almost prime)
   93 in octal is 0135
   93 in hexadecimal is 0x5d
   93 in binary is 1011101 (is odious)
   93 nearest square numbers: -12...7 (81 [9]...100 [10])
   sqrt(93) = 9.64365
   ln(93) = 4.5326
   log(93) = 1.96848
   93 reciprocal is .01075268817204301075268817204301
   93! is 1.15677e+144
   93 is 29.6028 Pi years
   93 is 4 score and 13 years
   93 written as a Roman numeral is XCIII

The 2009 Super Bowl was number XLIII (43). Replace the 'L' with a 'C' and we get Roman numeral 93.

[Wikipedia] 93 was the number of United Airlines Flight that crashed in Pennsylvania on September 11, 2001.

From the Life is Strange Department

MathBabbler created this BAB on the morning of 27 January 2009. Later on that day, during his afternoon CSC100 class, he was helping students learn how to convert from binary to decimal. He arbitrarily wrote a sequence of binary digits (i.e. bits; zeros and ones) on the board and then he proceeded to convert the binary (base-2) number to decimal (base-10). His randonly written sequence of bits equalled 93.

Going from decimal-to-binary...

   93 takeaway 1 unit  of 64 leaves 29
   29 takeaway 0 units of 32 leaves 29
   29 takeaway 1 unit  of 16 leaves 13
   13 takeaway 1 unit  of  8 leaves  5
    5 takeaway 1 unit  of  4 leaves  1
    1 takeaway 0 units of  2 leaves  1
    1 takeaway 1 unit  of  1 leaves  0

   9310 = 10111012
Update::2009.03.07

Molly Kool, North America's first female sea captain, died at the age of 93 on 25 February 2009. Since this nBAB already existed, MathBabbler created a nBAB for 93+1.


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 27 January 2009

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