16993

16993 is a natural number that follows 16992 and precedes 16994. It is a prime number, meaning it has no positive divisors other than 1 and itself. In decimal notation, its digits are 1, 6, 9, 9, and 3, giving it a five-digit representation. The sum of its digits is 28, which shows that 16993 is not divisible by 3. The number is odd and does not end in 0 or 5, so it is not divisible by 2 or 5, respectively.

As a five-digit prime, 16993 appears in the standard sequence of prime numbers. It is not a palindrome, since reversing the digits yields 39961, a different number. It is not a perfect square or a cube, and there are no widely recognized special mathematical properties attached to 16993 beyond its status as a prime.

Representation and context: 16993 can be expressed as 17000 minus 7, or as the sum 10000 + 6000 + 900 + 90 + 3. In number theory, it serves as an example of a five-digit prime and may be encountered in lists or computations involving primes in base 10. While it does not have a known named significance or application, it contributes to the broader set of prime numbers used in primality testing, cryptography preliminaries, and mathematical enumeration.

See also: List of prime numbers, Prime number.