3681

3,681 is an odd composite number composed of two prime numbers multiplied together.

What does the number 3681 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

3681 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 3681:

3² × 409

(3 × 3 × 409)

See below for interesting mathematical facts about the number 3681 from the Numbermatics database.

Names of 3681

Cardinal: 3681 can be written as Three thousand, six hundred eighty-one.

Scientific notation

Scientific notation: 3.681 × 10³

Factors of 3681

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 412

Divisors of 3681

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 409 1227 3681
Sum of all divisors σ(n): 5330
Sum of proper divisors (its aliquot sum) s(n): 1649
3681 is a deficient number, because the sum of its proper divisors (1649) is less than itself. Its deficiency is 2032

Bases of 3681

Binary: 111001100001₂
Hexadecimal: 0xE61
Base-36: 2U9

Squares and roots of 3681

3681 squared (3681²) is 13549761
3681 cubed (3681³) is 49876670241
The square root of 3681 is 60.6712452485
The cube root of 3681 is 15.4402835819

Scales and comparisons

How big is 3681?

3,681 seconds is equal to 1 hour, 1 minute, 21 seconds.
To count from 1 to 3,681 would take you about twenty-one seconds.

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 3681 cubic inches would be around 1.3 feet tall.

Recreational maths with 3681

3681 backwards is 1863
The number of decimal digits it has is: 4
The sum of 3681's digits is 18
More coming soon!

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The information we have on file for 3681 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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