0087

0087 is a four-digit numeric string composed of two leading zeros followed by the digits 8 and 7. When treated as a number, it equals 87. Leading zeros are common in formatting to fix field width in data records, product codes, dates, or identifiers.

In mathematics, 87 is a composite number, with prime factorization 3 × 29. It is not a prime, not a power, and its proper divisors are 1, 3, and 29. It is an odd, non-square integer. In base representations, 87 equals 1010111 in binary and 0x57 in hexadecimal.

In science and technology, 87 is the atomic number of francium, a highly unstable alkali metal. Francium occurs only in trace amounts in nature and has no significant commercial applications due to its radioactivity and extreme rarity.

In culture and typography, sequences like 0087 appear as identifiers, years, or page numbers. As a year, 0087 CE would denote the year 87 in the Common Era. In computing, preserving the leading zeros in identifiers is important for formatting and sorting; some systems treat 0087 as a string rather than the integer 87.