21387440000
21,387,440,000 is an even composite number composed of four prime numbers multiplied together.
What does the number 21387440000 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 160 divisors.
21387440000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21387440000:
27 × 54 × 83 × 3221
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 83 × 3221)See below for interesting mathematical facts about the number 21387440000 from the Numbermatics database.
Names of 21387440000
- Cardinal: 21387440000 can be written as Twenty-one billion, three hundred eighty-seven million, four hundred forty thousand.
Scientific notation
- Scientific notation: 2.138744 × 1010
Factors of 21387440000
Divisors of 21387440000
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 4 5 8 10 16 20 25 32 40 50 64 80 83 100 125 128 160 166 200 250 320 332 400 415 500 625 640 664 800 830 1000 1250 1328 1600 1660 2000 2075 2500 2656 3200 3221 3320 4000 4150 5000 5312 6442 6640 8000 8300 10000 10375 10624 12884 13280 16000 16105 16600 20000 20750 25768 26560 32210 33200 40000 41500 51536 51875 53120 64420 66400 80000 80525 83000 103072 103750 128840 132800 161050 166000 206144 207500 257680 265600 267343 322100 332000 402625 412288 415000 515360 534686 644200 664000 805250 830000 1030720 1069372 1288400 1328000 1336715 1610500 1660000 2013125 2061440 2138744 2576800 2673430 3221000 3320000 4026250 4277488 5153600 5346860 6442000 6640000 6683575 8052500 8554976 10307200 10693720 12884000 13367150 16105000 17109952 21387440 25768000 26734300 32210000 33417875 34219904 42774880 51536000 53468600 64420000 66835750 85549760 106937200 128840000 133671500 167089375 171099520 213874400 257680000 267343000 334178750 427748800 534686000 668357500 855497600 1069372000 1336715000 2138744000 2673430000 4277488000 5346860000 10693720000 21387440000
- Sum of all divisors σ(n): 53900902440
- Sum of proper divisors (its aliquot sum) s(n): 32513462440
- 21387440000 is an abundant number, because the sum of its proper divisors (32513462440) is greater than itself. Its abundance is 11126022440
Bases of 21387440000
- Binary: 100111110101100101001101111100000002
- Hexadecimal: 0x4FACA6F80
- Base-36: 9TPJ2BK
Squares and roots of 21387440000
- 21387440000 squared (213874400002) is 457422589753600000000
- 21387440000 cubed (213874400003) is 9783098192999734784000000000000
-
The
square root of 21387440000 is 146244.4528862549 -
The
cube root of 21387440000 is 2775.7878346377
Scales and comparisons
How big is 21387440000?- 21,387,440,000 seconds is equal to 680 years, 2 weeks, 5 days, 19 hours, 33 minutes, 20 seconds.
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To count from 1 to 21,387,440,000 would take you about one thousand, three hundred sixty years!
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 21387440000 cubic inches would be around 231.3 feet tall.
Recreational maths with 21387440000
- 21387440000 backwards is 00004478312
- The number of decimal digits it has is: 11
- The sum of 21387440000's digits is 29
- More coming soon!
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The information we have on file for 21387440000 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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