### About the Number 453 (four hundred fifty-three)

453 was the smallest number without a nBAB on 31 December 2017.

```MathBabbler Number Analyst (MBNA) output:
=========================================
453 is natural, counting, whole, integer
453 is odd (not even)
453 is not extremely odd
453 proper divisors are: 1,3,151,
453 has 3 proper divisors
453 is deficient (sum of divisors is 155; ratio: 0.342163)
453 is unhappy
453 is a Squarefree Number
453 is composite (not prime)
453 has the prime factors: 3*151 (sum=154)
453 is semiprime (biprime or 2-almost prime)
453 is a 151-smooth number
453 in octal is 0705
453 in binary is 111000101 (is odious)
453 nearest square numbers: -12...31 (441...484 [22])
sqrt(453) = 21.2838
ln(453) = 6.11589
log(453) = 2.6561
453! is 1.60068e+1008
453 is 144.194 Pi years
453 is 22 score and 13 years
453 written as a Roman numeral is CDLIII
453 is 227^2 - 226^2 and 227 + 226 = 453
453 is a multiple of 3 & it contains a 3 (A121023)
___________________________________________________________________________
453 reciprocal is 0.002207505518763796909492273730684326710816777041942604856512141280353200883
remainders:
1,10,100,94,34,340,229,25,250,235,85,397,346,289,172,361,439,313,412,43,430,223,418,103,124,334,169,331,139,31,310,382,196,148,121,304,322,49,37,370,76,307,352,349,319,19,190,88,427,193,118,274,22,220,388,256,295,232,55,97,64,187,58,127,364,16,160,241,145,91,4,40,400,376,136,1
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 31 December 2017