21492

21,492 is an even composite number composed of three prime numbers multiplied together.

What does the number 21492 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

21492 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21492:

2² × 3³ × 199

(2 × 2 × 3 × 3 × 3 × 199)

See below for interesting mathematical facts about the number 21492 from the Numbermatics database.

Names of 21492

Cardinal: 21492 can be written as Twenty-one thousand, four hundred ninety-two.

Scientific notation

Scientific notation: 2.1492 × 10⁴

Factors of 21492

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 204

Divisors of 21492

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 9 12 18 27 36 54 108 199 398 597 796 1194 1791 2388 3582 5373 7164 10746 21492
Sum of all divisors σ(n): 56000
Sum of proper divisors (its aliquot sum) s(n): 34508
21492 is an abundant number, because the sum of its proper divisors (34508) is greater than itself. Its abundance is 13016

Bases of 21492

Binary: 101001111110100₂
Hexadecimal: 0x53F4
Base-36: GL0

Squares and roots of 21492

21492 squared (21492²) is 461906064
21492 cubed (21492³) is 9927285127488
The square root of 21492 is 146.6015006743
The cube root of 21492 is 27.8030395379

Scales and comparisons

How big is 21492?

21,492 seconds is equal to 5 hours, 58 minutes, 12 seconds.
To count from 1 to 21,492 would take you about five 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 21492 cubic inches would be around 2.3 feet tall.

Recreational maths with 21492

21492 backwards is 29412
21492 is a Harshad number.
The number of decimal digits it has is: 5
The sum of 21492's digits is 18
More coming soon!

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The information we have on file for 21492 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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