About the Number 490 (four hundred ninety)

490 was the smallest number without a nBAB on 6 June 2018.

MathBabbler Number Analyst (MBNA) output:
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490 is natural, counting, whole, integer
490 is even (not odd)
490 proper divisors are: 1,2,5,7,10,14,35,49,70,98,245,
490 has 11 proper divisors
490 is abundant (sum of divisors is 536; ratio: 1.09388)
490 is happy
490 is not a Squarefree Number: 49,
490 is composite (not prime)
490 has the prime factors: 2*5*7*7 (sum=21)
490 is a 7-smooth number
490 is *not* arithmetic (A003601)
490 in octal is 0752
490 in hexadecimal is 0x1ea
490 in binary is 111101010 (is evil)
490 nearest square numbers: -6...39 (484...529 [23])
sqrt(490) = 22.1359
ln(490) = 6.19441
log(490) = 2.6902
490! is 1.36787e+1107
490 is 155.972 Pi years
490 is 24 score and 10 years
490 written as a Roman numeral is CDXC
490 is a multiple of 49 & it contains a 49
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490 reciprocal is 0.0020408163265306122448979591836734693877551
remainders: 
1,10,100,20,200,40,400,80,310,160,130,320,260,150,30,300,60,110,120,220,240,440,480,390,470,290,450,90,410,180,330,360,170,230,340,460,190,430,380,370,270,250,50,10

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 06 June 2018

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