About the Number 390 (three hundred ninety)

390 was the smallest number that didn't have a nBAB on 8 January 2017. The next smallest number without a nBAB is 391. Note: 391 to 398, inclusive, did not have nBABs when this nBAB was created.

MathBabbler Number Analyst (MBNA) output:
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390 is natural, counting, whole, integer
390 is even (not odd)
390 proper divisors are: 1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,
390 has 15 proper divisors
390 is abundant (sum of divisors is 618; ratio: 1.58462)
390 is unhappy
390 is a Squarefree Number
390 is composite (not prime)
390 has the prime factors: 2*3*5*13 (sum=23)
390 is a 13-smooth number
390 is Arithmetic (A003601)
390 is the sum of 4 consecutive primes
390 = 89 + 97 + 101 + 103
390 in octal is 0606
390 in hexadecimal is 0x186
390 in binary is 110000110 (is evil)
390 nearest square numbers: -29...10 (361...400 [20])
sqrt(390) = 19.7484
ln(390) = 5.96615
log(390) = 2.59106
390 is an apocalyptic power (2^390 contains 666)
390! is 6.84012e+842
390 is 124.141 Pi years
390 is 19 score and 10 years
390 written as a Roman numeral is CCCXC
390 is a multiple of 3 & it contains a 3 (A121023)
390 is a multiple of 39 & it contains a 39
                     ______
390 reciprocal is 0.0025641
remainders: 
1,10,100,220,250,160,40,10

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

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