21901
21901 is a six-digit number. In Roman numerals, it would be represented as MMXCII. This number is an integer and is divisible by several smaller integers. Its prime factorization is 7 * 3131. 21901 is not a prime number. It falls between 21900 and 21902 in the sequence of natural numbers. In binary, 21901 is represented as 101010110101101. Its hexadecimal representation is 5595. The number can be found in various contexts, such as postal codes or identification numbers, though its specific significance would depend on the system it belongs to. Without further context, 21901 is simply a numerical value. It has no commonly known special mathematical properties or cultural associations.