### About the Number 84 (eighty-four)

This nBAB about the number `84` was created as a result of working on a nBAB for the number 62, which was created because of Ron Silver dying at the age of 62. Sigmund Freud had an obsession with the number 62 thinking it was going to be his death age (62 or either 61). Freud died at the age of 83; therefore, while working on the nBAB for number 62, the nBAB for number 83 was updated. MathBabbler noticed that he had a nBAB for all of the eighties except for the number `84`.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
84 is a natural, whole, integer
84 is even
84 proper divisors are: 1,2,3,4,6,7,12,14,21,28,42,
84 is refactorable (evenly divisable by # of divisors)
84 is abundant (sum of divisors is 140)
84 is unhappy
84 is a Harshad number
84 is not prime
84 is undulating
84 has the prime factors: 2*2*3*7
84 in octal is 0124
84 in hexadecimal is 0x54
84 in binary is 1010100 (is odious)
84 nearest square numbers: -3...16 (81...100 )
sqrt(84) = 9.16515
ln(84) = 4.43082
log(84) = 1.92428
84 reciprocal is .01190476190476190476190476190476
84! is 3.31424e+126
84 is 26.738 Pi years
84 is 4 score and 4 years
84 written as a Roman numeral is LXXXIV
```
##### Update::2010.11.29

Actor Leslie Nielsen died at the age of `84` on 28 November 2010.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
84 is a natural, whole, integer
84 is even
84 proper divisors are: 1,2,3,4,6,7,12,14,21,28,42,
84 is refactorable (evenly divisable by # of divisors)
84 is abundant (sum of divisors is 140)
84 is unhappy
84 is a Harshad number
84 is not prime
84 has the prime factors: 2*2*3*7 (sum=14)
84 is a hoax number
84 sum of prime factors is: 14
84 is undulating
84 is the sum of 2 consecutive primes
84 = 41 + 43
84 in octal is 0124
84 in hexadecimal is 0x54
84 in binary is 1010100 (is odious)
84 nearest square numbers: -3...16 (81...100 )
sqrt(84) = 9.16515
ln(84) = 4.43082
log(84) = 1.92428
84 reciprocal is .01190476190476190476190476190476
84! is 3.31424e+126
84 is 26.738 Pi years
84 is 4 score and 4 years
84 written as a Roman numeral is LXXXIV
84 = 22^2 - 20^2 and 2 * (22 + 20) = 84
```

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Creator: Gerald Thurman [gthurman@gmail.com]
Created: 16 March 2009 