About the Number 777 (seven hundred seventy-seven)

On 27 March 2009 the DJIA closed at 7776.18, which prompted MathBabbler to create a nBAB for the number 7777. After posting the nBAB for 7777, MathBabbler observed that he had nBABs for 7 and 7777, but he did not nBABs for 77 and 777.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   777 is a natural, whole, integer
   777 is odd
   777 proper divisors are: 1,3,7,21,37,111,259,
   777 is deficient (sum of divisors is 439)
   777 is unhappy
   777 is a Harshad number
   777 is not prime
   777 is undulating
   777 has the prime factors: 3*7*37
   777 is sphenic (had 3 unique prime factors)
   777 in octal is 01411
   777 in hexadecimal is 0x309
   777 in binary is 1100001001 (is evil)
   777 nearest square numbers: -48...7 (729...784 [28])
   sqrt(777) = 27.8747
   ln(777) = 6.65544
   log(777) = 2.89042
   777 reciprocal is .00128700128700128700128700128700
   777! is 1.79749e+1910
   777 is 247.327 Pi years
   777 is 38 score and 17 years
   777 written as a Roman numeral is DCCLXXVII

777 is a palindromic number. [Note: On 29 March 2009 the MBNA only checked prime numbers to see if they were palindromic.]

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 29 March 2009