The number 70 is an integer written as “seventy” in English words. It follows the number 69 and comes before 71. Quick Overview Name in words: Seventy Roman Numeral: LXX Prime Factorization: 2 × 5 × 7 Binary Form: 1000110₂ Key Properties
Weird Number: It is the smallest “weird number” in mathematics, meaning it is abundant (the sum of its proper divisors is greater than 70) but not semiperfect (no subset of those divisors adds up to exactly 70).
Science: 70 is the atomic number for the chemical element Ytterbium (Yb).
History & Religion: In Jewish history, the Septuagint (the Greek translation of the Hebrew Bible) gets its name and standard symbol (LXX) from the 70 (or 72) Jewish scholars who translated it.
If you were typing a mathematical set, a coordinate, or a programming array (like [70, 80, 90]), let me know what you want to do with it!
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