### About the Number 522 (five hundred twenty-two)

522 was the smallest number without a nBAB on 28 June 2018.

```MathBabbler Number Analyst (MBNA) output:
=========================================
522 is natural, counting, whole, integer
522 is even (not odd)
522 proper divisors are: 1,2,3,6,9,18,29,58,87,174,261,
522 has 11 proper divisors
522 is abundant (sum of divisors is 648; ratio: 1.24138)
522 is unhappy
522 is not a Squarefree Number: 9,
522 is Harshad (Niven) number
522 is composite (not prime)
522 has the prime factors: 2*3*3*29 (sum=37)
522 is a 29-smooth number
522 is sum of two squares
...522 = 9^2 + 21^2
522 is Recaman number 1217
522 is *not* arithmetic (A003601)
522 is the sum of 6 consecutive primes
522 = 73 + 79 + 83 + 89 + 97 + 101
522 digital root is 9
522 in octal is 01012
522 in hexadecimal is 0x20a
522 in binary is 1000001010 (is odious)
522 nearest square numbers: -38...7 (484...529 )
sqrt(522) = 22.8473
ln(522) = 6.25767
log(522) = 2.71767
522! is 4.78936e+1193
522 is 166.158 Pi years
522 is 26 score and 2 years
522 written as a Roman numeral is DXXII
522 is a multiple of 2 & it contains a 2 (A121022)
____________________________
522 reciprocal is 0.00191570881226053639846743295
remainders:
1,10,100,478,82,298,370,46,460,424,64,118,136,316,28,280,190,334,208,514,442,244,352,388,226,172,154,496,262,10
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 28 June 2018 