About the Number 1699 (one thousand six hundred ninety-nine)

MathBabber tweeted tweet number 1699 on 29 September 2011.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   1699 is a natural, whole, integer
   1699 is odd
   1699 proper divisors are: 1,
   1699 is deficient (sum of divisors is 1)
   1699 is unhappy
   1699 is not a Harshad number
   1699 is prime
   ...Sexy prime with 1693
   ...Twin prime with 1697
   ...Truman Gerald prime with 1669
   ...OEIS:002145 (4n+3; n=424)
   ...prime triplet {1693, 1697, 1699}
   1699 in octal is 03243
   1699 in hexadecimal is 0x6a3
   1699 in binary is 11010100011 (is evil)
   1699 nearest square numbers: -18...65 (1681...1764 [42])
   sqrt(1699) = 41.2189
   ln(1699) = 7.4378
   log(1699) = 3.23019
   1699 reciprocal is .00058858151854031783402001177163
   1699! is 1.76374e+4752
   1699 is 540.808 Pi years
   1699 is 84 score and 19 years
   1699 written as a Roman numeral is MDCXCIX
   1699 = 850^2 - 849^2 and 850 + 849 = 1699

While creating this nBAB for the number 1699, MathBabbler had to refresh his memory as to what it meant for a prime number to be part of a prime triplet. A prime triplet is a "set of three prime numbers of the form (p, p + 2, p + 6) or (p, p + 4, p + 6)."

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 29 September 2011