3400

3400 is a natural number that comes after 3399 and before 3401. It is an even, composite number with prime factorization 2^3 × 5^2 × 17, which means it has 24 positive divisors.

In different numeral systems, 3400 is written as 3400 in decimal, 110101001000 in binary, 0xD48 in hexadecimal, and 6510 in octal.

In number theory, the number of ways to express 3400 as a sum of consecutive positive integers equals the number of odd divisors of 3400; the odd divisors are 1, 5, 17, and 85, yielding four representations.

As a calendar reference, 3400 may denote the year AD 3400, a point far in the future, or 3400 BCE in ancient times. In the Gregorian calendar there is no year zero.