About the Number 155 (one hundred fifty-five)

This nBAB about the number 155 was the first nBAB created using the itoe program. The number 155 was selected because if the smallest number that didn't have a nBAB. itoe stands for integer-to-english and that is what the itoe program does: It converts an integer into its English equivalent.

The itoe program is executed by the newnbab program, which in turn is used to create nBABs. Prior to itoe I had to type the number along with its English representation, but with itoe all I have to do is type the number.

	prior to itoe...
	prompt: newnbab 155 one hundred fifty-five
	prompt: newnbab 34011 thirty-four thousand eleven

	with itoe...
	prompt: newnbab 155
	prompt: newnbab 34011

MathBabbler Number Analyst (MBNA) output:
=========================================
155 is a natural, whole, integer
155 is odd
155 proper divisors are: 1,5,31,
155 has 3 proper divisors
155 is deficient (sum of divisors is 37; ratio: 0.23871)
155 is unhappy
155 is a Squarefree Number
155 is not a Harshad number
155 is not prime
155 has the prime factors: 5*31 (sum=36)
155 is semiprime (biprime or 2-almost prime)
5...31...answer: 36
155 is the sum of 9 consecutive primes
155 = 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31
155 in octal is 0233
155 in hexadecimal is 0x9b
155 in binary is 10011011 (is odious)
155 nearest square numbers: -11...14 (144...169 [13])
sqrt(155) = 12.4499
ln(155) = 5.04343
log(155) = 2.19033
155 reciprocal is .00645161290322580645161290322580
155! is 4.78914e+273
155 is 49.338 Pi years
155 is 7 score and 15 years
155 written as a Roman numeral is CLV
155 = 78^2 - 77^2 and 78 + 77 = 155

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 18 December 2013

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