About the Number 240 (two hundred forty)

This nBAB for the number 240 was created by accident on 10 October 2015.

MathBabbler Number Analyst (MBNA) output:
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240 is a natural, whole, integer
240 is even
240 proper divisors are: 1,2,3,4,5,6,8,10,12,15,16,20,24,30,40,48,60,80,120,
240 is refactorable (evenly divisable  by # of divisors)
240 has 19 proper divisors
240 is abundant (sum of divisors is 504; ratio: 2.1)
240 is unhappy
240 is not a Squarefree Number: 4,16,
240 is Harshad (Niven) number
240 is composite (not prime)
240 has the prime factors: 2*2*2*2*3*5 (sum=16)
240 is pronic (oblong) (15*16)
240 is the sum of 8 consecutive primes
240 = 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43
240 is not in A038853
240 in octal is 0360
240 in hexadecimal is 0xf0
240 in binary is 11110000 (is evil)
240 nearest square numbers: -15...16 (225...256 [16])
sqrt(240) = 15.4919
ln(240) = 5.48064
log(240) = 2.38021
240 reciprocal is .00416666666666666666666666666666
240! is 4.06789e+468
240 is 76.3944 Pi years
240 is 12 scoreyears
240 written as a Roman numeral is CCXL
240 is 61^2 - 59^2 and 2 * (61 + 59)
240 is a multiple of 2 & it contains a 2 (A121022)
240 is a multiple of 4 & it contains a 4 (A121024)
240 is a multiple of 24 & it contains a 24
240 is a multiple of 40 & it contains a 40

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 10 October 2015 (posted 11 October 2015)

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