About the Number 2549 (two thousand five hundred forty-nine)

BAB# 2549 was the 116th BAB of the fall 2009 semester and it was about the October CPI (Consumer Price index).

MathBabbler was surprised to learn that 2549 is a prime number because he "sees" 25 and 49 and they are both square numbers.

   MathBabbler Number Analyst (MBNA) output:
   =========================================
   2549 is a natural, whole, integer
   2549 is odd
   2549 proper divisors are: 1,
   2549 is deficient (sum of divisors is 1)
   2549 is unhappy
   2549 is not a Harshad number
   2549 is prime
   ...Sexy prime with 2543
   ...Sophie Germain prime with 5099
   ...Twin prime with 2551
   ...Pythagorean
   ...Super
   ...Eisenstein
   2549 in octal is 04765
   2549 in hexadecimal is 0x9f5
   2549 in binary is 100111110101 (is evil)
   2549 nearest square numbers: -49...52 (2500...2601 [51])
   sqrt(2549) = 50.4876
   ln(2549) = 7.84346
   log(2549) = 3.40637
   2549 reciprocal is .00039231071008238524911730090231
   2549 is an apocalyptic power
   2549! is inf
   2549 is 811.372 Pi years
   2549 is 127 score and 9 years
   2549 written as a Roman numeral is MMDXLIX

2549 = 5^2 * 10^2 + 7^2

2549 = 50^2 + 7^2

[WolframAlpha.com] 2549 is the "hypotenuse of a primitive Pythagorean triple: 700^2+2451^2"

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 18 November 2009