21,421,427 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 21421427 look like?

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

21421427 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 21421427:


See below for interesting mathematical facts about the number 21421427 from the Numbermatics database.

Names of 21421427

  • Cardinal: 21421427 can be written as Twenty-one million, four hundred twenty-one thousand, four hundred twenty-seven.

Scientific notation

  • Scientific notation: 2.1421427 × 107

Factors of 21421427

  • Number of distinct prime factors ω(n): 1
  • Total number of prime factors Ω(n): 1
  • Sum of prime factors: 21421427

Divisors of 21421427

  • Number of divisors d(n): 2
  • Complete list of divisors:
  • Sum of all divisors σ(n): 21421428
  • Sum of proper divisors (its aliquot sum) s(n): 1
  • 21421427 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21421426

Bases of 21421427

  • Binary: 10100011011011101011100112
  • Hexadecimal: 0x146DD73
  • Base-36: CR4VN

Squares and roots of 21421427

  • 21421427 squared (214214272) is 458877534716329
  • 21421427 cubed (214214273) is 9829811611865807381483
  • The square root of 21421427 is 4628.3287480471
  • The cube root of 21421427 is 277.7257400771

Scales and comparisons

How big is 21421427?
  • 21,421,427 seconds is equal to 35 weeks, 2 days, 22 hours, 23 minutes, 47 seconds.
  • To count from 1 to 21,421,427 would take you about twenty-one 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 21421427 cubic inches would be around 23.1 feet tall.

Recreational maths with 21421427

  • 21421427 backwards is 72412412
  • The number of decimal digits it has is: 8
  • The sum of 21421427's digits is 23
  • More coming soon!

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The information we have on file for 21421427 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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