# 9961

## 9,961 is an odd composite number composed of two prime numbers multiplied together.

What does the number 9961 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

9961 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

## Prime factorization of 9961:

### 7 × 1423

See below for interesting mathematical facts about the number 9961 from the Numbermatics database.

### Names of 9961

• Cardinal: 9961 can be written as Nine thousand, nine hundred sixty-one.

### Scientific notation

• Scientific notation: 9.961 × 103

### Factors of 9961

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1430

### Divisors of 9961

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 11392
• Sum of proper divisors (its aliquot sum) s(n): 1431
• 9961 is a deficient number, because the sum of its proper divisors (1431) is less than itself. Its deficiency is 8530

### Bases of 9961

• Binary: 100110111010012
• Base-36: 7OP

### Squares and roots of 9961

• 9961 squared (99612) is 99221521
• 9961 cubed (99613) is 988345570681
• The square root of 9961 is 99.8048095033
• The cube root of 9961 is 21.5163027603

### Scales and comparisons

How big is 9961?
• 9,961 seconds is equal to 2 hours, 46 minutes, 1 second.
• To count from 1 to 9,961 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 9961 cubic inches would be around 1.8 feet tall.

### Recreational maths with 9961

• 9961 backwards is 1699
• The number of decimal digits it has is: 4
• The sum of 9961's digits is 25
• More coming soon!

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"Number 9961 - Facts about the integer". Numbermatics.com. 2022. Web. 9 August 2022.

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Numbermatics. (2022). Number 9961 - Facts about the integer. Retrieved 9 August 2022, from https://numbermatics.com/n/9961/

Chicago style:
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The information we have on file for 9961 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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