21289312

21,289,312 is an even composite number composed of four prime numbers multiplied together.

What does the number 21289312 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

21289312 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21289312:

2⁵ × 11 × 31 × 1951

(2 × 2 × 2 × 2 × 2 × 11 × 31 × 1951)

See below for interesting mathematical facts about the number 21289312 from the Numbermatics database.

Names of 21289312

Cardinal: 21289312 can be written as Twenty-one million, two hundred eighty-nine thousand, three hundred twelve.

Scientific notation

Scientific notation: 2.1289312 × 10⁷

Factors of 21289312

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 1995

Divisors of 21289312

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 8 11 16 22 31 32 44 62 88 124 176 248 341 352 496 682 992 1364 1951 2728 3902 5456 7804 10912 15608 21461 31216 42922 60481 62432 85844 120962 171688 241924 343376 483848 665291 686752 967696 1330582 1935392 2661164 5322328 10644656 21289312
Sum of all divisors σ(n): 47222784
Sum of proper divisors (its aliquot sum) s(n): 25933472
21289312 is an abundant number, because the sum of its proper divisors (25933472) is greater than itself. Its abundance is 4644160

Bases of 21289312

Binary: 1010001001101100101100000₂
Hexadecimal: 0x144D960
Base-36: COAXS

Squares and roots of 21289312

21289312 squared (21289312²) is 453234805433344
21289312 cubed (21289312³) is 9649057182129755619328
The square root of 21289312 is 4614.0342434793
The cube root of 21289312 is 277.1536115753

Scales and comparisons

How big is 21289312?

21,289,312 seconds is equal to 35 weeks, 1 day, 9 hours, 41 minutes, 52 seconds.
To count from 1 to 21,289,312 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 21289312 cubic inches would be around 23.1 feet tall.

Recreational maths with 21289312

21289312 backwards is 21398212
The number of decimal digits it has is: 8
The sum of 21289312's digits is 28
More coming soon!

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The information we have on file for 21289312 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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