19421

19,421 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 19421 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

19421 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 19421:

19421

See below for interesting mathematical facts about the number 19421 from the Numbermatics database.


Names of 19421

  • Cardinal: 19421 can be written as Nineteen thousand, four hundred twenty-one.

Scientific notation

  • Scientific notation: 1.9421 × 104

Factors of 19421

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 1
  • Sum of prime factors: 19421

Divisors of 19421

  • Number of divisors d(n): 2
  • Complete list of divisors:
  • Sum of all divisors σ(n): 19422
  • Sum of proper divisors (its aliquot sum) s(n): 1
  • 19421 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 19420

Bases of 19421

  • Binary: 1001011110111012
  • Hexadecimal: 0x4BDD
  • Base-36: EZH

Squares and roots of 19421

  • 19421 squared (194212) is 377175241
  • 19421 cubed (194213) is 7325120355461
  • The square root of 19421 is 139.3592479887
  • The cube root of 19421 is 26.8796656763

Scales and comparisons

How big is 19421?
  • 19,421 seconds is equal to 5 hours, 23 minutes, 41 seconds.
  • To count from 1 to 19,421 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 19421 cubic inches would be around 2.2 feet tall.

Recreational maths with 19421

  • 19421 backwards is 12491
  • 19421 is a twin prime! Its twin is 19423
  • The number of decimal digits it has is: 5
  • The sum of 19421's digits is 17
  • More coming soon!

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"Number 19421 - Facts about the integer". Numbermatics.com. 2024. Web. 28 March 2024.

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Numbermatics. (2024). Number 19421 - Facts about the integer. Retrieved 28 March 2024, from https://numbermatics.com/n/19421/

Chicago style:
Numbermatics. 2024. "Number 19421 - Facts about the integer". https://numbermatics.com/n/19421/

The information we have on file for 19421 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 19421, math, Factors of 19421, curriculum, school, college, exams, university, Prime factorization of 19421, STEM, science, technology, engineering, physics, economics, calculator, nineteen thousand, four hundred twenty-one.

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