27989

27,989 is an odd composite number composed of two prime numbers multiplied together.

What does the number 27989 look like?

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

27989 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 27989:

13 × 2153

See below for interesting mathematical facts about the number 27989 from the Numbermatics database.

Names of 27989

Cardinal: 27989 can be written as Twenty-seven thousand, nine hundred eighty-nine.

Scientific notation

Scientific notation: 2.7989 × 10⁴

Factors of 27989

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 2166

Divisors of 27989

Number of divisors d(n): 4
Complete list of divisors:
1 13 2153 27989
Sum of all divisors σ(n): 30156
Sum of proper divisors (its aliquot sum) s(n): 2167
27989 is a deficient number, because the sum of its proper divisors (2167) is less than itself. Its deficiency is 25822

Bases of 27989

Binary: 110110101010101₂
Hexadecimal: 0x6D55
Base-36: LLH

Squares and roots of 27989

27989 squared (27989²) is 783384121
27989 cubed (27989³) is 21926138162669
The square root of 27989 is 167.2991332913
The cube root of 27989 is 30.3619127123

Scales and comparisons

How big is 27989?

27,989 seconds is equal to 7 hours, 46 minutes, 29 seconds.
To count from 1 to 27,989 would take you about seven 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 27989 cubic inches would be around 2.5 feet tall.

Recreational maths with 27989

27989 backwards is 98972
The number of decimal digits it has is: 5
The sum of 27989's digits is 35
More coming soon!

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The information we have on file for 27989 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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