What is the first magic number?

The magic numbers

magic numbers

In nuclear physics, a magic number is a number of nucleons (either protons or neutrons, separately) such that they are arranged into complete shells within the atomic nucleus. As a result, atomic nuclei with a 'magic' number of protons or neutrons are much more stable than other nuclei.

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Magic number (physics) - Wikipedia

for atoms are 2, 10, 18, 36, 54, and 86, corresponding to the total number of electrons in filled electron shells.

What is the real magic number?

It is 1729. Discovered by mathemagician Srinivas Ramanujan, 1729 is said to be the magic number because it is the sole number which can be expressed as the sum of the cubes of two different sets of numbers.

What are the first three magic number?

The seven most widely recognized magic numbers as of 2019 are 2, 8, 20, 28, 50, 82, and 126 (sequence A018226 in the OEIS).

What is the first magic number in physics?

Physicists refer to the number of protons or neutrons in a full shell as “magic” numbers, with numbers 2, 8, 20, 28, 50, 82, and 126 widely recognized as being “magic” numbers. The number of protons and neutrons also determines the size of an atom's nucleus, called its charge radius.

Is 1 a magic number?

Checks that there are no "magic numbers" where a magic number is a numeric literal that is not defined as a constant. By default, -1, 0, 1, and 2 are not considered to be magic numbers.

Magic Numbers - CS50 Shorts

Why is 7 a magic number?

Lucky number 7 is even the basis for many myths and folklore. Ancient beliefs from around the world believed that the seventh son of the seventh son would be gifted with magical powers (both good and evil). In the Bible, scholars claim that God created the world in six days and used the seventh day to rest.

What are all the magic numbers?

The magic numbers for atoms are 2, 10, 18, 36, 54, and 86, corresponding to the total number of electrons in filled electron shells. (Electrons within a shell have very similar energies and are at similar distances from the nucleus.)

What is the magic number in psychology?

The Magic number 7 (plus or minus two) provides evidence for the capacity of short-term memory. Most adults can store between 5 and 9 items in their short-term memory. This idea was put forward by Miller (1956) and he called it the magic number 7.

What is the most magic number?

It might just be the number 137. Those three digits, as it turns out, have long been the rare object of fascination that bridges the gulf between science and mysticism. "137 continues to fire the imagination of everyone from scientists and mystics to occultists and people from the far-flung edges of society," Arthur I.

Why is the number 3 so powerful?

Throughout human history, the number 3 has always had a unique significance, but why? The ancient Greek philosopher, Pythagoras, postulated that the meaning behind numbers was deeply significant. In their eyes the number 3 was considered as the perfect number, the number of harmony, wisdom and understanding.

Why is 33 a magic number?

Number 33 is a Master Number (Master Teacher) and resonates with the energies of compassion, blessings, inspiration, honesty, discipline, bravery and courage. Number 33 tells us that 'all things are possible'. 33 is also the number that symbolizes 'guidance'.

How do I find my magic number?

Why is the number 1729 so special?

It's the smallest number expressible as the sum of two cubes in two different ways." 1729 is the sum of the cubes of 10 and 9. Cube of 10 is 1000 and the cube of 9 is 729. Both the cubes, therefore, add up to 1729.

What does 1729 mean?

1729, the Hardy-Ramanujan Number, is the smallest number which can be expressed as the sum of two different cubes in two different ways. 1729 is the sum of the cubes of 10 and 9 - cube of 10 is 1000 and cube of 9 is 729; adding the two numbers results in 1729.

What does 7 symbolize?

Seven was symbolic in ancient near eastern and Israelite culture and literature. It communicated a sense of “fullness” or “completeness” (שבע “seven” is spelled with the same consonants as the word שבע “complete/full”). This makes sense of the pervasive appearance of “seven” patterns in the Bible.

Why is 37 a magic number?

Consider any three-digit number with all digits equal. For example, 111, 222, etc. These numbers are all divisible by 37. Moreover, the answer is just given by adding all the digits.

What is the limit of human memory?

As mentioned in an article in Scientific American, the memory capacity of a human brain was testified to have equal to 2.5 petabytes of memory capacity. A “petabyte” means 1024 terabytes or a million gigabytes so that the average adult human brain can accumulate the equivalent of 2.5 million gigabytes of memory.

What is the 7 2 rule?

Miller's Law is a cognitive psychology principle that states that the average person can only hold about 7 (plus or minus 2) items in their working memory at a time. This is also known as the “magic number 7”.

What are good magic numbers?

The ideal benchmark for the Magic Number is between 1 and 1.5, indicating efficient and sustainable sales and marketing efficiency. Most investors also accept Magic Numbers ranging from 0.5 to 1 because it shows that the company is on the right track.

Why is 72 a magic number?

The magic number

The premise of the rule revolves around either dividing 72 by the interest rate your investment will receive, or inversely, dividing the number of years you would like to double your money in by 72 to give you the required rate of return.

Why do magic numbers exist?

Significance of the Magic Number in Nuclear Physics

The magic numbers indicate the number of filled nuclear shells. They tend to identify the isotopes that are much more stable as compared to other elements. The magic number shows the energies of each nucleon.

What is the luckiest number in the universe?

Perhaps part of the answer lies in a seminal paper published in 1956 by the psychologist George A Miller called “The Magical Number Seven, Plus or Minus Two”. Miller claims that it is more than just coincidence that the number 7 seems to be all around us.

What number is perfect?

perfect number, a positive integer that is equal to the sum of its proper divisors. The smallest perfect number is 6, which is the sum of 1, 2, and 3. Other perfect numbers are 28, 496, and 8,128. The discovery of such numbers is lost in prehistory.

Why is the number 7 so powerful?

The Pythagoreans invested particular numbers with unique spiritual properties. The number seven was considered to be particularly interesting because it consisted of the union of the physical (number 4) with the spiritual (number 3). In Pythagorean numerology the number 7 means spirituality.