84 (eighty-four) is the natural number following 83 and preceding 85. It is seven dozens. A hepteract is a seven- dimensional hypercube with 84 penteract 5-faces. 84 is a semiperfect number, [1] being thrice a perfect number, and the sum of the sixth pair of twin primes . [2] . It is the number of four-digit perfect powers in decimal. [3]

Factors of 84 are the numbers that divide the original number evenly. For example, 2 is the factor of 84, since 84 divided by 2 is equal to 42. Pair factors are the numbers which when multiplied in pairs give the original number.

It comes between eighty-three and eighty-five, and is an even number. It is divisible by 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.

No, 84 is not a prime number. The number 84 is divisible by 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84. For a number to be classified as a prime number , it should have exactly two factors.

Meanings of the number 84 are interpretations of the essence in relation to its numerology chart position, or in relation to the situation or circumstances where the number occurs. Here are example interpretations of the number 84.

Your guide to the number 84, an even composite number composed of three distinct primes. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.

The meaning of the number 84: How is 84 spell, written in words, interesting facts, mathematics, computer science, numerology, codes. Phone prefix +84 or 0084. 84 in Roman Numerals and images.

84 (number) 84 is an even two-digits composite number following 83 and preceding 85. In scientific notation, it is written as 8.4 × 10 1. The sum of its digits is 12. It has a total of 4 prime factors and 12 positive divisors. There are 24 positive integers (up to 84) that are relatively prime to 84. Properties; Name; Notation

84 is a semiperfect number, being thrice a perfect number, and the sum of the sixth pair of twin primes (41 + 43). It is the third (or second) dodecahedral number, and the sum of the first seven triangular numbers (1, 3, 6, 10, 15, 21, 28, 36), which makes it the sixth tetrahedral number.

The number 84 is a highly composite number, meaning it has more divisors than any smaller positive integer. It is also the sum of the first seven triangular numbers, making it a tetrahedral number. In Roman numerals, 84 is represented as LXXXIV, and in Chinese culture, it is considered a lucky number due to its pronunciation sounding similar to ...