A number is a mathematical concept for representing measure, order, or quantity. The order numbers (first, second, third...) are designated by ordinals and the quantity numbers (1, 2,3...) are designated by cardinals. Measure or quantity numbers are expressed in decimal base by the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and may have an integer part (before the comma) and a decimal part (after the comma ). For example the number 2.37 has 2 as an integer part and 0.37 as a decimal part.
In Mathematics, numbers are classified as natural (1, 2,3,...), integers (...-2, -1, 0, 1, 2,...), rational (contains the integers and the its fractions or reasons), real (contains rationals and others that cannot be expressed as a fraction, such as √2 or π) and also complex numbers (contains real numbers and roots negative).
The Greek mathematician and philosopher Pythagoras regarded numbers as the essence and principle of all things.
Numerology is a pseudoscience that aims to study the hidden meaning of numbers. According to scholars, numbers influence people's present and future, altering personality and behavior traits throughout life.
Also read the meaning of Arabic numerals.