21312689

21,312,689 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21312689 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

21312689 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 21312689:

3191 × 6679

See below for interesting mathematical facts about the number 21312689 from the Numbermatics database.

Names of 21312689

Cardinal: 21312689 can be written as Twenty-one million, three hundred twelve thousand, six hundred eighty-nine.

Scientific notation

Scientific notation: 2.1312689 × 10⁷

Factors of 21312689

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 9870

Divisors of 21312689

Number of divisors d(n): 4
Complete list of divisors:
1 3191 6679 21312689
Sum of all divisors σ(n): 21322560
Sum of proper divisors (its aliquot sum) s(n): 9871
21312689 is a deficient number, because the sum of its proper divisors (9871) is less than itself. Its deficiency is 21302818

Bases of 21312689

Binary: 1010001010011010010110001₂
Hexadecimal: 0x14534B1
Base-36: COSZ5

Squares and roots of 21312689

21312689 squared (21312689²) is 454230712410721
21312689 cubed (21312689³) is 9680877907858136938769
The square root of 21312689 is 4616.5667979571
The cube root of 21312689 is 277.2550184841

Scales and comparisons

How big is 21312689?

21,312,689 seconds is equal to 35 weeks, 1 day, 16 hours, 11 minutes, 29 seconds.
To count from 1 to 21,312,689 would take you about six 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 21312689 cubic inches would be around 23.1 feet tall.

Recreational maths with 21312689

21312689 backwards is 98621312
The number of decimal digits it has is: 8
The sum of 21312689's digits is 32
More coming soon!

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The information we have on file for 21312689 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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