104

104 is the natural number that follows 103 and precedes 105. It is an even, composite number with a prime factorization of 2^3 × 13. The positive divisors of 104 are 1, 2, 4, 8, 13, 26, 52, and 104. The sum of its proper divisors is 106, which makes 104 an abundant number. In Roman numerals, 104 is written as CIV.

In numeral systems, 104 can be represented as 1101000 in binary, 0x68 in hexadecimal, and 150 in octal. In ASCII encoding, the decimal value 104 corresponds to the lowercase letter 'h'.

In science, 104 is the atomic number of Rutherfordium (Rf), a synthetic, highly radioactive element not found in nature. Rutherfordium is produced in particle accelerators and has no stable isotopes; its most characteristic properties are derived from its position in the periodic table and its short-lived nuclei.

In culture and music, 104 is associated with notable works such as Haydn’s Symphony No. 104, commonly known as the London Symphony. Composed in the late 18th century, it is recognized as a significant example of Classical-era orchestral writing.

Beyond mathematics and science, the number 104 appears in various practical contexts, such as field lengths and cataloging schemes, but its primary significance lies in its mathematical properties, its role as the element with atomic number 104, and its appearances in music and encoding systems.