# 21275431321

## 21,275,431,321 is an odd composite number. It is composed of a single prime number multiplied by itself.

What does the number 21275431321 look like?

This visualization shows the relationship between its 1 prime factors (large circles) and 3 divisors.

21275431321 is an odd composite number. It has a total of three divisors.

## Prime factorization of 21275431321:

### 1458612

(145861 × 145861)

See below for interesting mathematical facts about the number 21275431321 from the Numbermatics database.

### Names of 21275431321

• Cardinal: 21275431321 can be written as Twenty-one billion, two hundred seventy-five million, four hundred thirty-one thousand, three hundred twenty-one.

### Scientific notation

• Scientific notation: 2.1275431321 × 1010

### Factors of 21275431321

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 145861

### Divisors of 21275431321

• Number of divisors d(n): 3
• Complete list of divisors:
• Sum of all divisors σ(n): 21275577183
• Sum of proper divisors (its aliquot sum) s(n): 145862
• 21275431321 is a deficient number, because the sum of its proper divisors (145862) is less than itself. Its deficiency is 21275285459

### Bases of 21275431321

• Binary: 100111101000001110101010001100110012
• Base-36: 9RUUBVD

### Squares and roots of 21275431321

• 21275431321 squared (212754313212) is 452643977894587805041
• 21275431321 cubed (212754313213) is 9630195864560545023753933089161
• 21275431321 is a perfect square number. Its square root is 145861
• The cube root of 21275431321 is 2770.9336355469

### Scales and comparisons

How big is 21275431321?
• 21,275,431,321 seconds is equal to 676 years, 25 weeks, 4 days, 10 hours, 2 minutes, 1 second.
• To count from 1 to 21,275,431,321 would take you about one thousand, three hundred fifty-two years!

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21275431321 cubic inches would be around 230.9 feet tall.

### Recreational maths with 21275431321

• 21275431321 backwards is 12313457212
• The number of decimal digits it has is: 11
• The sum of 21275431321's digits is 31
• More coming soon!

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The information we have on file for 21275431321 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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