218 (number)

218 is a natural number following 217 and preceding 219. It is a composite number, having more than two factors. Its prime factorization is 2 × 109.

Mathematical Properties

• Even number: 218 is an even number because it is divisible by 2.
• Composite number: It is not a prime number as it has factors other than 1 and itself.
• Abundant number: The sum of its proper divisors (1, 2, 109) is greater than the number itself (1 + 2 + 109 = 112 > 218). This is incorrect; 218 is actually a deficient number. The sum of its proper divisors is 112, which is less than 218. Therefore, it is a deficient number.
• Deficient number: The sum of its proper divisors is less than the number itself.
• Sphenic number: It is a product of three distinct prime numbers (2, 109).

Other Representations

• Roman numerals: CCXVIII
• Binary: 11011010
• Hexadecimal: DA

Cultural Significance

There is currently insufficient information available regarding any significant cultural or historical associations with the number 218. Further research may reveal connections in specific contexts, such as geographical locations or historical events.