3431

3431 is a natural number that follows 3430 and precedes 3432. It is an odd composite number, meaning it is not prime and has more than two positive divisors.

The prime factorization of 3431 is 47 multiplied by 73, so 3431 = 47 × 73. This makes 3431 a semiprime, a product of exactly two prime numbers. It is not a perfect square or a perfect cube, and its digits sum to 11, indicating it is not divisible by 3 or 9. It also is not divisible by 5, since it ends in 1.

In various numeral systems, 3431 can be represented as follows: in binary it is 110101100111, in hexadecimal it is D67, and in octal it is 6547. In Roman numerals, 3431 is written as MMMCDXXXI.

As a four-digit decimal number, 3431 is encountered in general arithmetic and number-theory contexts as an example of a semiprime. Its factorization into two distinct primes places it among numbers studied for properties such as factorization behavior, modular arithmetic, and its representations across different bases. Beyond these mathematical characteristics, there are no widely noted historical events or widely recognized applications uniquely tied to the number 3431.