The geekiest PIN numbers

While true geeks will not hesitate to point out that the phrase “PIN number” is redundant (PIN stands for Personal Identification Number, after all), you should appreciate this list of math, sci-fi and otherwise nerdalicious tech references.

This infographic might also serve as a caution, too, of the numbers you probably should avoid for your PINs and phone passwords.
The geekiest PIN numbers

The geekiest PIN numbers - math and nerdism

The numeric breakdown
  • 0042: 42 is the answer to the ultimate question of life, the Universe and everything else (from the novel The Hitchhikers Guide to the Galaxy)
  • 1701: NCC-1701 is the USS Enterprise, a starship in Star Trek
  • 1138: The number that appears in George Lucas works and products. For example, the movie THX 1138. It also appears in various Star Wars films, video games and books.
  • 1969:Is the only value less than 1,000,000 for which the standard Mod-N Ackermann function does not stabilize.
  • 1337: Spells LEET in Leet.
  • 3435: A natural number with the property that the sum of its digits raised to themselves produces the origirnal number is called a Munchausen Number. The only Munchausen numbers are 1 and 3435.
  • 5141: The only four digit number that is reversed in hexadecimal.
  • 6174: Known as Kaprekar’s constant. It at most 7 iterations [of the below], the above process will always produce 6174.
    1. Take any four-digit number, except 1111, 2222…. 9999. Leading zeros are allowed.
    2. Arrange the digits in increasing and then in decreasing order to get two four-digit numbers, adding leading zeros if necessary.
    3. Subtract the smaller number from the bigger number.
    4. Repeat steps 2 and 3.
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