3401

3401 is a natural number that follows 3400 and precedes 3402. It is an odd and composite number. Its prime factorization is 19 × 179, making it a semiprime. The positive divisors are 1, 19, 179, and 3401.

In various numeral systems, 3401 can be represented as binary 110101001001, octal 6511, and hexadecimal 0xD49. In Roman numerals it is MMMCDI.

As a semiprime with two distinct prime factors, 3401 has Euler's totient φ(3401) = (19 − 1)(179 − 1) = 18 × 178 = 3204. The sum of its digits is 8, so the digital root is 8. It is congruent to 1 modulo 4 and 2 modulo 3, among other modular properties.

Besides its numeric properties, 3401 is used in counting and cataloging schemes where natural numbers are assigned sequential identifiers. It does not have a widely recognized significance beyond mathematics in common reference works, but it is part of the sequence of natural numbers.