Official Count to 1 Trillion Thread

MMS

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511 is the natural number following 510 and preceding 512.

It is a Mersenne number, being one less than a power of 2:
{\displaystyle 511=2^{9}-1}
. As a result, 511 is a palindromic number and a repdigit in bases 2 (1111111112). It is also palindromic and a repdigit in base 8 (7778).

It is a generalized heptagonal number (sequence A085787 in the OEIS), since
{\displaystyle 511={\frac {1}{2}}(5n^{2}-3n)}
when
{\displaystyle n=-14}
.

It is a Harshad number in bases 3, 5, 7, 10, 13 and 15.

Special use in computers[edit]
The octal representation of 511 (7778) is commonly used by Unix commands to specify a custom record separator in order to "slurp" input as a whole, rather than line-by-line (i.e. separated at newline characters).

Built like a bag of milk



 
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CopiousX

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I must say. We had some doubters early on but it's nice to see we are half way to a thousand posts. This will probably be the biggest coli thread by 2026.


I can't help but feel like those medieval cathedral builders. Where folks would start building an huge church in 900AD just for it to be compete by 1300AD.



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CopiousX

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I like the city bus theme yall started. Imma keep it going :russ:





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