13851

13851 is a number that falls between 13850 and 13852 in the sequence of natural numbers. It is an odd number, as it cannot be evenly divided by 2. In the decimal system, it is written as "thirteen thousand eight hundred fifty-one." In scientific notation, it is expressed as 1.3851 x 10^4.

The number 13851 is a composite number, meaning it has factors other than 1 and itself. Its prime factorization is 3 x 3 x 3 x 539, indicating it is the product of three 3s and the prime number 539. This makes 13851 a sphenic number, a type of composite number that is the product of three distinct prime numbers.

In the context of mathematics, 13851 is also known as a Harshad number, or Niven number, because it is divisible by the sum of its digits (1 + 3 + 8 + 5 + 1 = 18). Additionally, 13851 is a palindromic number in the binary system, as it reads the same backward as forward (1101100011011 in binary).

The number 13851 does not hold any significant historical or cultural importance, but it is an interesting subject for mathematical exploration and study.