MathBabbler visited Google on Pi Day 2009 expecting to find a modified logo to celebrate Pi Day, but instead the Google logo had been modified to honor Italian astronomer Giovanni Schiaparelli. Clicking the logo took users to a webpage that stated the following: "In 1890, Italian astronomer Giovanni Schiaparelli drew this map of Mars. Today, on his
174
th birthday, we are excited to include his work with many other new features for Mars in Google Earth."MathBabbler Number Analyst (MBNA) output: ========================================= 174 is a natural, whole, integer 174 is even 174 proper divisors are: 1,2,3,6,29,58,87, 174 is abundant (sum of divisors is 186) 174 is unhappy 174 is not a Harshad number 174 is not prime 174 has the prime factors: 2*3*29 174 in octal is 0256 174 in hexadecimal is 0xae 174 in binary is 10101110 (is odious) 174 nearest square numbers: -5...22 (169...196 [14]) sqrt(174) = 13.1909 ln(174) = 5.15906 log(174) = 2.24055 174 reciprocal is .00574712643678160919540229885057 174! is 6.42543e+315 174 is 55.3859 Pi years 174 is 8 score and 14 years 174 written as a Roman numeral is CLXXIV
[Wikipedia]
174
is a sphenic number because it is "positive integer which is the product of three distinct prime numbers."Note: On 14 March 2009, the MBNA did not check for sphenic numbers.
The first few sphenic numbers are...
30, 42, 66, 70, 78, 102, 105, 110, 114, 130, 138, 154, 165OEIS.org::id:A007304
Update::2009.03.16
The MBNA's (MathBabbler Number Analyst) prime factors program has been modified to check for sphenic numbers.
GDT::C++::Code::Prime Factors code
Creator: Gerald Thurman
[gthurman@gmail.com]
Created: 14 March 2009