21748

21,748 is an even composite number composed of two prime numbers multiplied together.

What does the number 21748 look like?

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

21748 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 21748:

22 × 5437

(2 × 2 × 5437)

See below for interesting mathematical facts about the number 21748 from the Numbermatics database.

Names of 21748

• Cardinal: 21748 can be written as Twenty-one thousand, seven hundred forty-eight.

Scientific notation

• Scientific notation: 2.1748 × 104

Factors of 21748

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 5439

Divisors of 21748

• Number of divisors d(n): 6
• Complete list of divisors:
• Sum of all divisors σ(n): 38066
• Sum of proper divisors (its aliquot sum) s(n): 16318
• 21748 is a deficient number, because the sum of its proper divisors (16318) is less than itself. Its deficiency is 5430

Bases of 21748

• Binary: 1010100111101002
• Base-36: GS4

Squares and roots of 21748

• 21748 squared (217482) is 472975504
• 21748 cubed (217483) is 10286271260992
• The square root of 21748 is 147.4720312467
• The cube root of 21748 is 27.9129952351

Scales and comparisons

How big is 21748?
• 21,748 seconds is equal to 6 hours, 2 minutes, 28 seconds.
• To count from 1 to 21,748 would take you about six 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 21748 cubic inches would be around 2.3 feet tall.

Recreational maths with 21748

• 21748 backwards is 84712
• The number of decimal digits it has is: 5
• The sum of 21748's digits is 22
• More coming soon!

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"Number 21748 - Facts about the integer". Numbermatics.com. 2022. Web. 20 January 2022.

APA style:
Numbermatics. (2022). Number 21748 - Facts about the integer. Retrieved 20 January 2022, from https://numbermatics.com/n/21748/

Chicago style:
Numbermatics. 2022. "Number 21748 - Facts about the integer". https://numbermatics.com/n/21748/

The information we have on file for 21748 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!

Keywords: Divisors of 21748, math, Factors of 21748, curriculum, school, college, exams, university, Prime factorization of 21748, STEM, science, technology, engineering, physics, economics, calculator, twenty-one thousand, seven hundred forty-eight.

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