MathBabbler created this BAB as a result of deciding to drive US Hwy-

`on Pi Day 2008.`

180180 is an even, positive, integer 180 is not prime 180 has the prime factors: 2, 2, 3, 3, 5 180 is Roman numeral CLXXX 180 is a Harshad number (sum of its digits is a factor of 180) 180° is a straight angle 180° is Pi radians 180° is the sum of the angles in a triangleThe Wikipedia says

180is the sum of six consecutive primes and eight consecutive primes.180 = 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 180 = 19 + 23 + 29 + 31 + 37 + 41The Number Gossip says,

180is anevil number. MathBabbler did not know what defined an evil number, but he learned that a positive integer is evil if it contains an even number of 1's when expressed in base-2. {More... from Wolfram MathWorld}180 = 10110100_{base-2}When basketball player Jason Kidd was traded from one team to another, he was quoted saying he was going to help turn his new team around 360 degrees. MathBabbler suspects Jason meant to say 180 degrees.

## Update::2009.12.15

BAB#

`for the fall 2009 semester was posted on 15 December 2009. The MathBabbler Number Analyst (MBNA) was modified since this nBAB was created; therefore, the following is more current MBNA output for the number`

180`.`

180MathBabbler Number Analyst (MBNA) output: ========================================= 180 is a natural, whole, integer 180 is even 180 proper divisors are: 1,2,3,4,5,6,9,10,12,15,18,20,30,36,45,60,90, 180 is refactorable (evenly divisable by # of divisors) 180 is abundant (sum of divisors is 366) 180 is unhappy 180 is a Harshad number 180 is not prime 180 has the prime factors: 2*2*3*3*5 (sum=15) 180 sum of prime factors is: 15 180 is the sum of 8 consecutive primes 180 = 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 180 in octal is 0264 180 in hexadecimal is 0xb4 180 in binary is 10110100 (is evil) 180 nearest square numbers: -11...16 (169...196 [14]) sqrt(180) = 13.4164 ln(180) = 5.19296 log(180) = 2.25527 180 reciprocal is .00555555555555555555555555555555 180! is 2.00896e+329 180 is 57.2958 Pi years 180 is 9 scoreyears 180 written as a Roman numeral is CLXXX

`is a triple-X Roman numeral.`

180`degrees equals Pi radians.`

180

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 27 February 2008

This work is licensed under a Creative Commons Attribution 3.0 United States License.