The numbers 2, 8, 8, 18, 18, 32 are known as magic numbers. It is because of the fact that the elements which occur after these intervals have similar properties. For example, atomic number of Li is 3. If we add 8 (magic number) to 3, then we will get atomic number 11 which stands for sodium.
In programming, a magic number is a constant value used to identify a file format, protocol or error code. In many file formats, the first few bytes identify the file; for example, "PK" in ZIP files and the hex values "F8 D8" in JPEG files.
magic number, in physics, in the shell models of both atomic and nuclear structure, any of a series of numbers that connote stable structure. The magic numbers for atoms are 2, 10, 18, 36, 54, and 86, corresponding to the total number of electrons in filled electron shells.
The nuclear shell theory predicted that superheavy elements with the “magic number” of protons or neutrons needed to fill their respective shells would enjoy longer lives. For neutrons, the magic number was 184; for protons, the numbers 114, 120 and 126 looked promising.
The conventional magic numbers for the nucleus are {2, 8, 20, 28, 50, 82, 126}. The case is made elsewhere that 6 and 14 are also magic numbers. (A recent study also found evidence for a magic number of about 180.) Thus the magic numbers for filled shells are then {2, 6, 8, 14, 20, 28, 50, 82, 126}.
But 137?" The number 137, according to Lederman, "shows up naked all over the place", meaning that scientists on any planet in the universe using whatever units they have for charge or speed, and whatever their version of the Planck constant may be, will all come up with 137, because it is a pure number.
A magic sequence of length n is a sequence of integers x0… xn−1 between 0 and n−1, such that for all i in 0 to n−1, the number i occurs exactly xi times in the sequence. For instance, 6,2,1,0,0,0,1,0,0,0 is a magic sequence since 0 occurs 6 times in it, 1 occurs twice, etc.
The "magical number 7" and working memory capacity
Chunking is used by the brain's short-term memory as a method for keeping groups of information accessible for easy recall.
You can calculate the magic number for your SaaS business by subtracting the last quarter's annual recurring revenue (ARR) from the current quarter's ARR and dividing by your total customer acquisition cost (CAC) (your total sales and marketing spend) from the previous quarter.
From physics, mathematics and science to mysticism, occultism, the Kabbalah and the Torah, the number 137 may just be the most magical and important number in the universe.
Magic code is a programming puzzle game, the game uses game mechanics firmly rooted in programming concepts. The game allows players to get a practical understanding of the basic concepts such as the sequence of instructions, procedures and cycles, learn the basics and logic of programming.
For example, if we begin with 452, reversed we get 254, and taking the smaller from the larger, 452 – 254 = 198. If we reverse this number and then add the two we get 891 + 198 = 1089. And it always will be, regardless of the three digit number you start with.
This rule, also known as the electronic structure rule, helps us grasp how electrons are arranged in atoms. It states that the first energy level can hold up to 2 electrons, while the second and third levels can each accommodate up to 8 electrons.
How is a magic number calculated? Games remaining + 1 - (losses by second-place team - losses by first-place team) = magic number. A team's magic number represents the combination of wins needed by that team and losses by its closest competitor that would result in that team mathematically-clinching a playoff spot.
The number 37 has many remarkable qualities that make it stand out among other numbers. For one, it is a prime number, which means it is only divisible by 1 and itself. This makes it a fundamental building block of mathematics, as all other numbers can be expressed as a product of prime numbers.
Seven was the most powerful magical number, based on centuries of mythology, science, and mathematics, and therefore had a very important role in the wizarding world. Arithmancer Bridget Wenlock was the first to note this through a theorem which exposed the magical properties of the number seven.
42 is the number with which God creates the Universe in Kabbalistic tradition. In Kabbalah, the most significant name is that of the En Sof (also known as "Ein Sof", "Infinite" or "Endless"), who is above the Sefirot (sometimes spelled "Sephirot").
Douglas Adams said it was the answer to the meaning of life, the universe, and everything. He meant it as a joke, but a new book shows how the number 42 has played a significant role in history.
9 is called the magic number because the sum of the digits of the multiples of 9 is always 9.
The sequence is given as 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, and 233 and so on. Two preceding numbers are added together to equal the Fibonacci number, for example, 1 + 2 equals 3, 2 + 3 equals 5, 3 + 5 equals 8.
Seven. Can be used to signify "perfection" or "completeness". It may have been inspired from the fact that the primary lunar phases are roughly 7 days (7.4) each. Examples include the seven days of creation and so seven days that make up a week, and the seven lamps on the Temple Menorah.
In mathematics
132 is an oblong number, as the product of 11 and 12 whose sum instead yields the 9th prime number 23; on the other hand, 132 is the 99th composite number. 132 is the smallest number in decimal with this property, which is shared by 264, 396 and 35964 (see digit-reassembly number).
144000 is a powerful number. Every exponent in its prime factorization is larger than 1. It is the product of a square and a cube. A powerful number is a positive integer m such that for every prime number p dividing m, p2 also divides m.