72990

72,990 is an even composite number composed of four prime numbers multiplied together.

What does the number 72990 look like?

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

72990 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 72990:

2 × 3² × 5 × 811

(2 × 3 × 3 × 5 × 811)

See below for interesting mathematical facts about the number 72990 from the Numbermatics database.

Names of 72990

Cardinal: 72990 can be written as Seventy-two thousand, nine hundred ninety.

Scientific notation

Scientific notation: 7.299 × 10⁴

Factors of 72990

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 821

Divisors of 72990

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 5 6 9 10 15 18 30 45 90 811 1622 2433 4055 4866 7299 8110 12165 14598 24330 36495 72990
Sum of all divisors σ(n): 190008
Sum of proper divisors (its aliquot sum) s(n): 117018
72990 is an abundant number, because the sum of its proper divisors (117018) is greater than itself. Its abundance is 44028

Bases of 72990

Binary: 10001110100011110₂
Hexadecimal: 0x11D1E
Base-36: 1KBI

Squares and roots of 72990

72990 squared (72990²) is 5327540100
72990 cubed (72990³) is 388857151899000
The square root of 72990 is 270.1666152581
The cube root of 72990 is 41.7914835025

Scales and comparisons

How big is 72990?

72,990 seconds is equal to 20 hours, 16 minutes, 30 seconds.
To count from 1 to 72,990 would take you about twenty 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 72990 cubic inches would be around 3.5 feet tall.

Recreational maths with 72990

72990 backwards is 09927
The number of decimal digits it has is: 5
The sum of 72990's digits is 27
More coming soon!

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The information we have on file for 72990 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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