About the Number 440 (four hundred forty)

440 was the smallest number without a nBAB on 8 May 2017.

MathBabbler Number Analyst (MBNA) output:
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440 is natural, counting, whole, integer
440 is even (not odd)
440 proper divisors are: 1,2,4,5,8,10,11,20,22,40,44,55,88,110,220,
440 has 15 proper divisors
440 is abundant (sum of divisors is 640; ratio: 1.45455)
440 is happy
440 is not a Squarefree Number: 4,
440 is Harshad (Niven) number
440 is composite (not prime)
440 has the prime factors: 2*2*2*5*11 (sum=22)
440 is a 11-smooth number
440 is *not* arithmetic (A003601)
440 is the sum of 17 consecutive primes
440 = 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59
440 in octal is 0670
440 in hexadecimal is 0x1b8
440 in binary is 110111000 (is odious)
440 nearest square numbers: -40...1 (400...441 [21])
sqrt(440) = 20.9762
ln(440) = 6.08677
log(440) = 2.64345
440! is 5.62994e+973
440 is 140.056 Pi years
440 is 22 scoreyears
440 written as a Roman numeral is CDXL
440 is 111^2 - 109^2 and 2 * (111 + 109)
440 is a multiple of 4 & it contains a 4 (A121024)
440 is a multiple of 44 & it contains a 44
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440 reciprocal is 0.00227
remainders: 
1,10,100,120,320,120

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 08 May 2017

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