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The number 82 has several interesting aspects. Mathematically, it is an even composite number and can be expressed as the product of the primes 2 and 41 (2 × 41). It is also a member of the Mersenne prime exponents, as 2⁸² - 1 results in a large prime number. In science, 82 is the atomic number of lead, a heavy metal with applications ranging from batteries to radiation shielding. Culturally, in Chinese numerology, the number 82 is considered auspicious, combining the meanings of the numbers 8 (prosperity) and 2 (harmony). Additionally, historically, 82 AD saw the completion of the Colosseum in Rome under Emperor Titus, an iconic symbol of ancient Roman engineering and entertainment.