# 9901

## 9,901 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 9901 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

9901 is a prime number. Like all primes (except two), it is an odd number.

## Prime factorization of 9901:

### 9901

See below for interesting mathematical facts about the number 9901 from the Numbermatics database.

### Names of 9901

• Cardinal: 9901 can be written as Nine thousand, nine hundred one.

### Scientific notation

• Scientific notation: 9.901 × 103

### Factors of 9901

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 9901

### Divisors of 9901

• Number of divisors d(n): 2
• Complete list of divisors:
• Sum of all divisors σ(n): 9902
• Sum of proper divisors (its aliquot sum) s(n): 1
• 9901 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 9900

### Bases of 9901

• Binary: 100110101011012
• Base-36: 7N1

### Squares and roots of 9901

• 9901 squared (99012) is 98029801
• 9901 cubed (99013) is 970593059701
• The square root of 9901 is 99.5037687729
• The cube root of 9901 is 21.4730146387

### Scales and comparisons

How big is 9901?
• 9,901 seconds is equal to 2 hours, 45 minutes, 1 second.
• To count from 1 to 9,901 would take you about two hours.

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 9901 cubic inches would be around 1.8 feet tall.

### Recreational maths with 9901

• 9901 backwards is 1099
• The number of decimal digits it has is: 4
• The sum of 9901's digits is 19
• More coming soon!

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The information we have on file for 9901 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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