21242138724
21,242,138,724 is an even composite number composed of six prime numbers multiplied together.
21242138724 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21242138724:
22 × 32 × 17 × 89 × 571 × 683
(2 × 2 × 3 × 3 × 17 × 89 × 571 × 683)See below for interesting mathematical facts about the number 21242138724 from the Numbermatics database.
Names of 21242138724
- Cardinal: 21242138724 can be written as Twenty-one billion, two hundred forty-two million, one hundred thirty-eight thousand, seven hundred twenty-four.
Scientific notation
- Scientific notation: 2.1242138724 × 1010
Factors of 21242138724
Divisors of 21242138724
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 9 12 17 18 34 36 51 68 89 102 153 178 204 267 306 356 534 571 612 683 801 1068 1142 1366 1513 1602 1713 2049 2284 2732 3026 3204 3426 4098 4539 5139 6052 6147 6852 8196 9078 9707 10278 11611 12294 13617 18156 19414 20556 23222 24588 27234 29121 34833 38828 46444 50819 54468 58242 60787 69666 87363 101638 104499 116484 121574 139332 152457 174726 182361 203276 208998 243148 304914 349452 364722 389993 417996 457371 547083 609828 729444 779986 863923 914742 1033379 1094166 1169979 1559972 1727846 1829484 2066758 2188332 2339958 2591769 3100137 3455692 3509937 4133516 4679916 5183538 6200274 6629881 7019874 7775307 9300411 10367076 12400548 13259762 14039748 15550614 18600822 19889643 26519524 31101228 34709377 37201644 39779286 59668929 69418754 79558572 104128131 119337858 138837508 208256262 238675716 312384393 416512524 590059409 624768786 1180118818 1249537572 1770178227 2360237636 3540356454 5310534681 7080712908 10621069362 21242138724
- Sum of all divisors σ(n): 57677780160
- Sum of proper divisors (its aliquot sum) s(n): 36435641436
- 21242138724 is an abundant number, because the sum of its proper divisors (36435641436) is greater than itself. Its abundance is 15193502712
Bases of 21242138724
- Binary: 100111100100010000101010000011001002
- Hexadecimal: 0x4F2215064
- Base-36: 9RB0R50
Squares and roots of 21242138724
- 21242138724 squared (212421387242) is 451228457569660348176
- 21242138724 cubed (212421387243) is 9585057491911273009516732367424
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The
square root of 21242138724 is 145746.8309226653 -
The
cube root of 21242138724 is 2769.4875271709
Scales and comparisons
How big is 21242138724?- 21,242,138,724 seconds is equal to 675 years, 22 weeks, 4 days, 2 hours, 5 minutes, 24 seconds.
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To count from 1 to 21,242,138,724 would take you about one thousand, three hundred fifty 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 21242138724 cubic inches would be around 230.8 feet tall.
Recreational maths with 21242138724
- 21242138724 backwards is 42783124212
- 21242138724 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21242138724's digits is 36
- More coming soon!
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The information we have on file for 21242138724 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!
Keywords: Divisors of 21242138724, math, Factors of 21242138724, curriculum, school, college, exams, university, Prime factorization of 21242138724, STEM, science, technology, engineering, physics, economics, calculator, twenty-one billion, two hundred forty-two million, one hundred thirty-eight thousand, seven hundred twenty-four.