21489526520
21,489,526,520 is an even composite number composed of seven prime numbers multiplied together.
21489526520 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21489526520:
23 × 5 × 7 × 11 × 23 × 61 × 4973
(2 × 2 × 2 × 5 × 7 × 11 × 23 × 61 × 4973)See below for interesting mathematical facts about the number 21489526520 from the Numbermatics database.
Names of 21489526520
- Cardinal: 21489526520 can be written as Twenty-one billion, four hundred eighty-nine million, five hundred twenty-six thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.148952652 × 1010
Factors of 21489526520
Divisors of 21489526520
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 20 22 23 28 35 40 44 46 55 56 61 70 77 88 92 110 115 122 140 154 161 184 220 230 244 253 280 305 308 322 385 427 440 460 488 506 610 616 644 671 770 805 854 920 1012 1220 1265 1288 1342 1403 1540 1610 1708 1771 2024 2135 2440 2530 2684 2806 3080 3220 3355 3416 3542 4270 4697 4973 5060 5368 5612 6440 6710 7015 7084 8540 8855 9394 9821 9946 10120 11224 13420 14030 14168 15433 17080 17710 18788 19642 19892 23485 24865 26840 28060 30866 34811 35420 37576 39284 39784 46970 49105 49730 54703 56120 61732 69622 70840 77165 78568 93940 98210 99460 108031 109406 114379 123464 139244 154330 174055 187880 196420 198920 216062 218812 228758 273515 278488 303353 308660 348110 382921 392840 432124 437624 457516 540155 547030 571895 606706 617320 696220 765842 800653 864248 915032 1080310 1094060 1143790 1213412 1258169 1392440 1516765 1531684 1601306 1914605 2123471 2160620 2188120 2287580 2426824 2516338 3033530 3063368 3202612 3336883 3829210 4003265 4246942 4321240 4575160 5032676 6067060 6290845 6405224 6673766 6977119 7658420 8006530 8493884 8807183 10065352 10617355 12134120 12581690 13347532 13954238 15316840 16013060 16684415 16987768 17614366 21234710 23358181 25163380 26695064 27908476 32026120 33368830 34885595 35228732 42469420 44035915 46716362 48839833 50326760 55816952 66737660 69771190 70457464 76748309 84938840 88071830 93432724 97679666 116790905 133475320 139542380 153496618 176143660 186865448 195359332 233581810 244199165 279084760 306993236 352287320 383741545 390718664 467163620 488398330 537238163 613986472 767483090 934327240 976796660 1074476326 1534966180 1953593320 2148952652 2686190815 3069932360 4297905304 5372381630 10744763260 21489526520
- Sum of all divisors σ(n): 63947335680
- Sum of proper divisors (its aliquot sum) s(n): 42457809160
- 21489526520 is an abundant number, because the sum of its proper divisors (42457809160) is greater than itself. Its abundance is 20968282640
Bases of 21489526520
- Binary: 101000000001110000000100110111110002
- Hexadecimal: 0x500E026F8
- Base-36: 9VEB4S8
Squares and roots of 21489526520
- 21489526520 squared (214895265202) is 461799750053783310400
- 21489526520 cubed (214895265203) is 9923857975710147875174191808000
-
The
square root of 21489526520 is 146593.0643652693 -
The
cube root of 21489526520 is 2780.1972894507
Scales and comparisons
How big is 21489526520?- 21,489,526,520 seconds is equal to 683 years, 15 weeks, 4 days, 8 hours, 55 minutes, 20 seconds.
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To count from 1 to 21,489,526,520 would take you about one thousand, three hundred sixty-six 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 21489526520 cubic inches would be around 231.7 feet tall.
Recreational maths with 21489526520
- 21489526520 backwards is 02562598412
- 21489526520 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21489526520's digits is 44
- More coming soon!
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