2691

2,691 is an odd composite number composed of three prime numbers multiplied together.

What does the number 2691 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

2691 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 2691:

3² × 13 × 23

(3 × 3 × 13 × 23)

See below for interesting mathematical facts about the number 2691 from the Numbermatics database.

Names of 2691

Cardinal: 2691 can be written as Two thousand, six hundred ninety-one.

Scientific notation

Scientific notation: 2.691 × 10³

Factors of 2691

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 39

Divisors of 2691

Number of divisors d(n): 12
Complete list of divisors:
1 3 9 13 23 39 69 117 207 299 897 2691
Sum of all divisors σ(n): 4368
Sum of proper divisors (its aliquot sum) s(n): 1677
2691 is a deficient number, because the sum of its proper divisors (1677) is less than itself. Its deficiency is 1014

Bases of 2691

Binary: 101010000011₂
Hexadecimal: 0xA83
Base-36: 22R

Squares and roots of 2691

2691 squared (2691²) is 7241481
2691 cubed (2691³) is 19486825371
The square root of 2691 is 51.8748493973
The cube root of 2691 is 13.9092773151

Scales and comparisons

How big is 2691?

2,691 seconds is equal to 44 minutes, 51 seconds.
To count from 1 to 2,691 would take you about forty-four minutes.

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 2691 cubic inches would be around 1.2 feet tall.

Recreational maths with 2691

2691 backwards is 1962
The number of decimal digits it has is: 4
The sum of 2691's digits is 18
More coming soon!

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The information we have on file for 2691 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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