27990

27,990 is an even composite number composed of four prime numbers multiplied together.

What does the number 27990 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

27990 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 27990:

2 × 3² × 5 × 311

(2 × 3 × 3 × 5 × 311)

See below for interesting mathematical facts about the number 27990 from the Numbermatics database.

Names of 27990

Cardinal: 27990 can be written as Twenty-seven thousand, nine hundred ninety.

Scientific notation

Scientific notation: 2.799 × 10⁴

Factors of 27990

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 321

Divisors of 27990

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 5 6 9 10 15 18 30 45 90 311 622 933 1555 1866 2799 3110 4665 5598 9330 13995 27990
Sum of all divisors σ(n): 73008
Sum of proper divisors (its aliquot sum) s(n): 45018
27990 is an abundant number, because the sum of its proper divisors (45018) is greater than itself. Its abundance is 17028

Bases of 27990

Binary: 110110101010110₂
Hexadecimal: 0x6D56
Base-36: LLI

Squares and roots of 27990

27990 squared (27990²) is 783440100
27990 cubed (27990³) is 21928488399000
The square root of 27990 is 167.3021219231
The cube root of 27990 is 30.3622743015

Scales and comparisons

How big is 27990?

27,990 seconds is equal to 7 hours, 46 minutes, 30 seconds.
To count from 1 to 27,990 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 27990 cubic inches would be around 2.5 feet tall.

Recreational maths with 27990

27990 backwards is 09972
The number of decimal digits it has is: 5
The sum of 27990's digits is 27
More coming soon!

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The information we have on file for 27990 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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