### About the Number 83 (eighty-three)

The book "Road Trip USA" calls US Hwy-83 is the "Road to Nowhere." This nBAB was created while RoadHacker was working on a roadtrip plan that included driving US Hwy-83 from McCook, Nebraska, south through Kansas to Liberal, Kansas, at the Oklahoma border.

```   83 is a rational-, whole-, natural-, counting- number
83 is a positive integer
83 is prime
83 squared is 6,889
sqrt(83) approximates 9.11
multiplicative_inverse(83) approximates 0.01205
```

From the Wikipedia we learned that `83` is the "sum of three consecutive primes (`23 + 29 + 31`) as well as the sum of five consecutive primes (`11 + 13 + 17 + 19 + 23`)."

There is an AZ Hwy-83, which intersects with AZ Hwy-82. AZ Hwy-83 connects with Interstate 10 near Vail south to Parker Canyon Lake.

Wikipedia.org:: 83 (number)

##### Update::2009.03.16

This nBAB about the number `83` was updated with the following MathBabbler Number Analyst output as a result of creating a nBAB for the number 62. While working on the nBAB for 62, MathBabbler learned that Sigmund Freud had an obsession with the numbers 61 and 62 thinking they might be his death age. Freud was wrong and he ended up dying in 1939 at the age of `83`.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
83 is a natural, whole, integer
83 is odd
83 proper divisors are: 1,
83 is deficient (sum of divisors is 1)
83 is unhappy
83 is not a Harshad number
83 is prime
...Cousin prime with 79
...Safe prime with 41
...Sexy prime with 89
...Sophie Germain prime with 167
...OEIS:002145 (4n+3; n=20)
...Super
...Left-truncatable
83 is undulating
83 is prime
83 in octal is 0123
83 in binary is 1010011 (is evil)
83 nearest square numbers: -2...17 (81...100 [10])
sqrt(83) = 9.11043
ln(83) = 4.41884
log(83) = 1.91908
83 reciprocal is .01204819277108433734939759036144
83! is 3.94552e+124
83 is 26.4197 Pi years
83 is 4 score and 3 years
83 written as a Roman numeral is LXXXIII
```
##### Update::2010.06.24

MathBabbler's dad (Truman) turned `83` on 24 June 2010.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
83 is a natural, whole, integer
83 is odd
83 proper divisors are: 1,
83 is deficient (sum of divisors is 1)
83 is unhappy
83 is not a Harshad number
83 is prime
...Cousin prime with 79
...Safe prime with 41
...Sexy prime with 89
...Sophie Germain prime with 167
...OEIS:002145 (4n+3; n=20)
...Super
...Left-truncatable
...Eisenstein
83 is undulating
83 is the sum of 5 consecutive primes
83 = 11 + 13 + 17 + 19 + 23
83 in octal is 0123
83 in binary is 1010011 (is evil)
83 nearest square numbers: -2...17 (81...100 [10])
sqrt(83) = 9.11043
ln(83) = 4.41884
log(83) = 1.91908
83 reciprocal is .01204819277108433734939759036144
83! is 3.94552e+124
83 is 26.4197 Pi years
83 is 4 score and 3 years
83 written as a Roman numeral is LXXXIII
83 = 42^2 - 41^2 and 42 + 41 = 83
```

`83` is a triple-X Roman numeral.

`8312` is repdigit number 99.

##### Update::2010.09.27

George Blanda died at the age of `83` on 27 September 2010.

`83` is a Truman Gerald prime with 113 and it's a Truman Gerald prime with 53. Note: MathBabbler was 53 when Blanda died and `5316` equals `83`.

##### Update::2012.09.05

MathBabbler's mom turned `83` years of age on 5 September 2012.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 11 May 2007