2141

2141 is a natural number that follows 2140 and precedes 2142. In mathematics, it is classified as an odd prime number, meaning it has no positive divisors other than 1 and itself.

In different numeral systems, 2141 is represented as follows: decimal 2141; hexadecimal 0x85D; binary 100001011101; and Roman numerals MMCXLI. The Roman numeral MMCXLI corresponds to 2000 (MM) plus 141 (CXLI).

Several simple properties accompany the number. It is odd and not divisible by 2, 3, or 5 (its digit sum is 8, so it is not a multiple of 3, and it does not end in 0 or 5). The square of 2141 is 4,583,881. In binary, it contains six ones (the representation 100001011101), which makes 2141 an evil number (a number with an even number of 1s in its binary expansion).

As a prime, its only positive divisors are 1 and 2141. Because of its primality and multiple base representations, 2141 can serve as a useful test value in algorithms for primality testing, base conversion, and related computational tasks.