2540

2540 is a natural number that follows 2539 and precedes 2541. It is an even composite number with prime factorization 2^2 × 5 × 127. Consequently, its positive divisors are 1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, and 2540, giving a total of 12 divisors.

In numeral representations, 2540 can be written as MMDXL in Roman numerals. In binary it equals 100111101100, and in hexadecimal it is 0x9EC.

If interpreted as a calendar year, 2540 CE would be a leap year in the Gregorian calendar, since it is divisible by 4 and is not a centurial year. It would be the 40th year of the 26th century. As with any far-future year, specific historical events are unknown and hypothetical.

In mathematics and education, 2540 is sometimes used as an example for illustrating factorization, divisor counting, and base conversions. It does not correspond to a widely recognized mathematical constant or well-known sequence by itself, but it serves as a representative composite number with multiple small prime factors.