21712431

21,712,431 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21712431 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

21712431 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21712431:

3 × 13 × 31 × 17959

See below for interesting mathematical facts about the number 21712431 from the Numbermatics database.

Names of 21712431

Cardinal: 21712431 can be written as Twenty-one million, seven hundred twelve thousand, four hundred thirty-one.

Scientific notation

Scientific notation: 2.1712431 × 10⁷

Factors of 21712431

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 18006

Divisors of 21712431

Number of divisors d(n): 16
Complete list of divisors:
1 3 13 31 39 93 403 1209 17959 53877 233467 556729 700401 1670187 7237477 21712431
Sum of all divisors σ(n): 32184320
Sum of proper divisors (its aliquot sum) s(n): 10471889
21712431 is a deficient number, because the sum of its proper divisors (10471889) is less than itself. Its deficiency is 11240542

Bases of 21712431

Binary: 1010010110100111000101111₂
Hexadecimal: 0x14B4E2F
Base-36: CXDF3

Squares and roots of 21712431

21712431 squared (21712431²) is 471429659929761
21712431 cubed (21712431³) is 10235883962578400558991
The square root of 21712431 is 4659.6599661349
The cube root of 21712431 is 278.9776963453

Scales and comparisons

How big is 21712431?

21,712,431 seconds is equal to 35 weeks, 6 days, 7 hours, 13 minutes, 51 seconds.
To count from 1 to 21,712,431 would take you about five days!

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 21712431 cubic inches would be around 23.2 feet tall.

Recreational maths with 21712431

21712431 backwards is 13421712
The number of decimal digits it has is: 8
The sum of 21712431's digits is 21
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The information we have on file for 21712431 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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