21401531

21,401,531 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 21401531 look like?

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

21401531 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 21401531:

21401531

See below for interesting mathematical facts about the number 21401531 from the Numbermatics database.

Names of 21401531

Cardinal: 21401531 can be written as Twenty-one million, four hundred one thousand, five hundred thirty-one.

Scientific notation

Scientific notation: 2.1401531 × 10⁷

Factors of 21401531

Number of distinct prime factors ω(n): 1
Total number of prime factors Ω(n): 1
Sum of prime factors: 21401531

Divisors of 21401531

Number of divisors d(n): 2
Complete list of divisors:
1 21401531
Sum of all divisors σ(n): 21401532
Sum of proper divisors (its aliquot sum) s(n): 1
21401531 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21401530

Bases of 21401531

Binary: 1010001101000111110111011₂
Hexadecimal: 0x1468FBB
Base-36: CQPIZ

Squares and roots of 21401531

21401531 squared (21401531²) is 458025529143961
21401531 cubed (21401531³) is 9802447560765884804291
The square root of 21401531 is 4626.1788767837
The cube root of 21401531 is 277.6397305113

Scales and comparisons

How big is 21401531?

21,401,531 seconds is equal to 35 weeks, 2 days, 16 hours, 52 minutes, 11 seconds.
To count from 1 to 21,401,531 would take you about thirteen 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 21401531 cubic inches would be around 23.1 feet tall.

Recreational maths with 21401531

21401531 backwards is 13510412
The number of decimal digits it has is: 8
The sum of 21401531's digits is 17
More coming soon!

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The information we have on file for 21401531 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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