243 (number)
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243 (two hundred ndforty-three) is the
natural number In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...
following 242 and preceding 244. Additionally, 243 is: *the only 3-digit number that is a fifth power (35). *a perfect totient number. *the sum of five consecutive
prime number A prime number (or a prime) is a natural number greater than 1 that is not a Product (mathematics), product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime ...
s (41 + 43 + 47 + 53 + 59). *an 82- gonal number.


References

Integers {{Num-stub