34 (number)

34 is a natural number following 33 and preceding 35.

Mathematics:

• 34 is an even number.
• 34 is a composite number. Its divisors are 1, 2, 17, and 34.
• 34 is the 9th Fibonacci number.
• 34 is the sum of the first four odd primes (3 + 5 + 7 + 19).
• 34 is a Lucas number.
• A 34-sided polygon is called a triacontatetragon.

Science:

• 34 is the atomic number of selenium (Se).

Other:

• 34 is sometimes used as a code or abbreviation. Its significance in these contexts varies greatly.