21242520
21,242,520 is an even composite number composed of six prime numbers multiplied together.
21242520 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21242520:
23 × 33 × 5 × 13 × 17 × 89
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 13 × 17 × 89)See below for interesting mathematical facts about the number 21242520 from the Numbermatics database.
Names of 21242520
- Cardinal: 21242520 can be written as Twenty-one million, two hundred forty-two thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.124252 × 107
Factors of 21242520
Divisors of 21242520
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 17 18 20 24 26 27 30 34 36 39 40 45 51 52 54 60 65 68 72 78 85 89 90 102 104 108 117 120 130 135 136 153 156 170 178 180 195 204 216 221 234 255 260 267 270 306 312 340 351 356 360 390 408 442 445 459 468 510 520 534 540 585 612 663 680 702 712 765 780 801 884 890 918 936 1020 1068 1080 1105 1157 1170 1224 1326 1335 1404 1513 1530 1560 1602 1755 1768 1780 1836 1989 2040 2136 2210 2295 2314 2340 2403 2652 2670 2808 3026 3060 3204 3315 3471 3510 3560 3672 3978 4005 4420 4539 4590 4628 4680 4806 5304 5340 5785 5967 6052 6120 6408 6630 6942 7020 7565 7956 8010 8840 9078 9180 9256 9612 9945 10413 10680 11570 11934 12015 12104 13260 13617 13884 14040 15130 15912 16020 17355 18156 18360 19224 19669 19890 20826 22695 23140 23868 24030 26520 27234 27768 29835 30260 31239 32040 34710 36312 39338 39780 40851 41652 45390 46280 47736 48060 52065 54468 59007 59670 60520 62478 68085 69420 78676 79560 81702 83304 90780 96120 98345 104130 108936 118014 119340 124956 136170 138840 156195 157352 163404 177021 181560 196690 204255 208260 236028 238680 249912 272340 295035 312390 326808 354042 393380 408510 416520 472056 531063 544680 590070 624780 708084 786760 817020 885105 1062126 1180140 1249560 1416168 1634040 1770210 2124252 2360280 2655315 3540420 4248504 5310630 7080840 10621260 21242520
- Sum of all divisors σ(n): 81648000
- Sum of proper divisors (its aliquot sum) s(n): 60405480
- 21242520 is an abundant number, because the sum of its proper divisors (60405480) is greater than itself. Its abundance is 39162960
Bases of 21242520
- Binary: 10100010000100010100110002
- Hexadecimal: 0x1442298
- Base-36: CNAU0
Squares and roots of 21242520
- 21242520 squared (212425202) is 451244655950400
- 21242520 cubed (212425203) is 9585573628919491008000
-
The
square root of 21242520 is 4608.9608373255 -
The
cube root of 21242520 is 276.9504096953
Scales and comparisons
How big is 21242520?- 21,242,520 seconds is equal to 35 weeks, 20 hours, 42 minutes.
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To count from 1 to 21,242,520 would take you about four 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 21242520 cubic inches would be around 23.1 feet tall.
Recreational maths with 21242520
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The information we have on file for 21242520 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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