21388921110
21,388,921,110 is an even composite number composed of eight prime numbers multiplied together.
21388921110 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21388921110:
2 × 32 × 5 × 17 × 19 × 43 × 71 × 241
(2 × 3 × 3 × 5 × 17 × 19 × 43 × 71 × 241)See below for interesting mathematical facts about the number 21388921110 from the Numbermatics database.
Names of 21388921110
- Cardinal: 21388921110 can be written as Twenty-one billion, three hundred eighty-eight million, nine hundred twenty-one thousand, one hundred ten.
Scientific notation
- Scientific notation: 2.138892111 × 1010
Factors of 21388921110
Divisors of 21388921110
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 5 6 9 10 15 17 18 19 30 34 38 43 45 51 57 71 85 86 90 95 102 114 129 142 153 170 171 190 213 215 241 255 258 285 306 323 342 355 387 426 430 482 510 570 639 645 646 710 723 731 765 774 817 855 969 1065 1205 1207 1278 1290 1349 1446 1462 1530 1615 1634 1710 1935 1938 2130 2169 2193 2410 2414 2451 2698 2907 3053 3195 3230 3615 3621 3655 3870 4047 4085 4097 4338 4386 4579 4845 4902 5814 6035 6106 6390 6579 6745 7230 7242 7310 7353 8094 8170 8194 9158 9159 9690 10363 10845 10863 10965 12070 12141 12255 12291 13158 13490 13737 13889 14535 14706 15265 17111 18105 18318 20235 20485 20726 21690 21726 21930 22895 22933 24282 24510 24582 27474 27477 27778 29070 30530 31089 32895 34222 36210 36765 36873 40470 40970 41211 41667 45790 45795 45866 51333 51815 51901 54315 54954 58007 60705 61455 62178 65790 68685 68799 69445 73530 73746 77843 82422 83334 85555 91590 93267 102666 103630 103802 108630 114665 116014 121410 122910 125001 137370 137385 137598 138890 153999 155445 155686 155703 171110 174021 176171 184365 186534 196897 206055 206397 208335 229330 233529 250002 256665 259505 274770 290035 290887 307998 310890 311406 325109 343995 348042 352342 368730 389215 393794 412110 412794 416670 466335 467058 467109 513330 519010 522063 528513 580070 581774 590691 625005 650218 687990 700587 735773 769995 778430 778515 870105 872661 880855 932670 934218 975327 984485 986119 1031985 1044126 1057026 1167645 1181382 1250010 1401174 1454435 1471546 1539990 1557030 1585539 1625545 1740210 1745322 1761710 1772073 1950654 1968970 1972238 2063970 2207319 2335290 2335545 2610315 2617983 2642565 2908870 2925981 2953455 2958357 3171078 3251090 3347249 3502935 3544146 3678865 4363305 4414638 4671090 4876635 4930595 5220630 5235966 5285130 5526853 5851962 5906910 5916714 6621957 6694498 7005870 7357730 7927695 8726610 8860365 8875071 9753270 9861190 10041747 11036595 11053706 12508141 13089915 13243914 13979687 14629905 14791785 15855390 16580559 16736245 17720730 17750142 20083494 22073190 25016282 26179830 27634265 27959374 29259810 29583570 30125241 33109785 33161118 33472490 37524423 41939061 44375355 49741677 50208735 55268530 60250482 62540705 66219570 69898435 75048846 82902795 83878122 88750710 99483354 100417470 112573269 125081410 125817183 139796870 150626205 165805590 187622115 209695305 225146538 237654679 248708385 251634366 301252410 375244230 419390610 475309358 497416770 562866345 629085915 712964037 1125732690 1188273395 1258171830 1425928074 2138892111 2376546790 3564820185 4277784222 7129640370 10694460555 21388921110
- Sum of all divisors σ(n): 64583101440
- Sum of proper divisors (its aliquot sum) s(n): 43194180330
- 21388921110 is an abundant number, because the sum of its proper divisors (43194180330) is greater than itself. Its abundance is 21805259220
Bases of 21388921110
- Binary: 100111110101110000100001001000101102
- Hexadecimal: 0x4FAE10916
- Base-36: 9TQET5I
Squares and roots of 21388921110
- 21388921110 squared (213889211102) is 457485946249803632100
- 21388921110 cubed (213889211103) is 9785130813270750239978363631000
-
The
square root of 21388921110 is 146249.5166145857 -
The
cube root of 21388921110 is 2775.8519088827
Scales and comparisons
How big is 21388921110?- 21,388,921,110 seconds is equal to 680 years, 5 weeks, 1 day, 22 hours, 58 minutes, 30 seconds.
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To count from 1 to 21,388,921,110 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 21388921110 cubic inches would be around 231.3 feet tall.
Recreational maths with 21388921110
- 21388921110 backwards is 01112988312
- The number of decimal digits it has is: 11
- The sum of 21388921110's digits is 36
- More coming soon!
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