The number 70 is the smallest weird number in mathematics. Mathematical Properties
Weird Number: An abundant number that is not semiperfect. Its proper divisors (1, 2, 5, 7, 10, 14, 35) add up to 74, which is greater than 70. However, no subset of these divisors can be added together to equal exactly 70. Factors: 1, 2, 5, 7, 10, 14, 35, 70. Prime Factorization: 2 × 5 × 7.
Pentagonal Number: Fits the mathematical formula to form a regular pentagon using dots. Broad Meanings Word Form: Spelled out as seventy. Historical Text: Represented by the Roman numeral LXX.
Recycling: Indicates mixed glass packaging under the GLS recycling code system.