21421657920
21,421,657,920 is an even composite number composed of seven prime numbers multiplied together.
21421657920 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred forty-eight divisors.
Prime factorization of 21421657920:
26 × 3 × 5 × 13 × 19 × 61 × 1481
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 19 × 61 × 1481)See below for interesting mathematical facts about the number 21421657920 from the Numbermatics database.
Names of 21421657920
- Cardinal: 21421657920 can be written as Twenty-one billion, four hundred twenty-one million, six hundred fifty-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.142165792 × 1010
Factors of 21421657920
Divisors of 21421657920
- Number of divisors d(n): 448
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 19 20 24 26 30 32 38 39 40 48 52 57 60 61 64 65 76 78 80 95 96 104 114 120 122 130 152 156 160 183 190 192 195 208 228 240 244 247 260 285 304 305 312 320 366 380 390 416 456 480 488 494 520 570 608 610 624 732 741 760 780 793 832 912 915 960 976 988 1040 1140 1159 1216 1220 1235 1248 1464 1481 1482 1520 1560 1586 1824 1830 1952 1976 2080 2280 2318 2379 2440 2470 2496 2928 2962 2964 3040 3120 3172 3477 3648 3660 3705 3904 3952 3965 4160 4443 4560 4636 4758 4880 4940 5795 5856 5924 5928 6080 6240 6344 6954 7320 7405 7410 7904 7930 8886 9120 9272 9516 9760 9880 11590 11712 11848 11856 11895 12480 12688 13908 14640 14810 14820 15067 15808 15860 17385 17772 18240 18544 19032 19253 19520 19760 22215 23180 23696 23712 23790 25376 27816 28139 29280 29620 29640 30134 31720 34770 35544 37088 38064 38506 39520 44430 45201 46360 47392 47424 47580 50752 55632 56278 57759 58560 59240 59280 60268 63440 69540 71088 74176 75335 76128 77012 79040 84417 88860 90341 90402 92720 94784 95160 96265 111264 112556 115518 118480 118560 120536 126880 139080 140695 142176 150670 152256 154024 168834 177720 180682 180804 185440 190320 192530 222528 225112 226005 231036 236960 237120 241072 253760 271023 278160 281390 284352 288795 301340 308048 337668 355440 361364 361608 365807 370880 380640 385060 422085 450224 451705 452010 462072 473920 482144 542046 556320 562780 577590 602680 616096 675336 710880 722728 723216 731614 761280 770120 844170 900448 903410 904020 924144 964288 1084092 1097421 1112640 1125560 1155180 1174433 1205360 1232192 1350672 1355115 1421760 1445456 1446432 1463228 1540240 1688340 1716479 1800896 1806820 1808040 1829035 1848288 2168184 2194842 2251120 2310360 2348866 2410720 2701344 2710230 2890912 2892864 2926456 3080480 3376680 3432958 3523299 3613640 3616080 3658070 3696576 4336368 4389684 4502240 4620720 4697732 4821440 5149437 5402688 5420460 5487105 5781824 5852912 5872165 6160960 6753360 6865916 7046598 7227280 7232160 7316140 8582395 8672736 8779368 9004480 9241440 9395464 10298874 10840920 10974210 11705824 11744330 13506720 13731832 14093196 14454560 14464320 14632280 17164790 17345472 17558736 17616495 18482880 18790928 20597748 21681840 21948420 22314227 23411648 23488660 25747185 27013440 27463664 28186392 28909120 29264560 34329580 35117472 35232990 37581856 41195496 43363680 43896840 44628454 46977320 51494370 54927328 56372784 58529120 66942681 68659160 70234944 70465980 75163712 82390992 86727360 87793680 89256908 93954640 102988740 109854656 111571135 112745568 117058240 133885362 137318320 140931960 164781984 175587360 178513816 187909280 205977480 223142270 225491136 267770724 274636640 281863920 329563968 334713405 351174720 357027632 375818560 411954960 446284540 535541448 549273280 563727840 669426810 714055264 823909920 892569080 1071082896 1127455680 1338853620 1428110528 1647819840 1785138160 2142165792 2677707240 3570276320 4284331584 5355414480 7140552640 10710828960 21421657920
- Sum of all divisors σ(n): 78417480960
- Sum of proper divisors (its aliquot sum) s(n): 56995823040
- 21421657920 is an abundant number, because the sum of its proper divisors (56995823040) is greater than itself. Its abundance is 35574165120
Bases of 21421657920
- Binary: 100111111001101010010001111010000002
- Hexadecimal: 0x4FCD48F40
- Base-36: 9U9WH1C
Squares and roots of 21421657920
- 21421657920 squared (214216579202) is 458887428041498726400
- 21421657920 cubed (214216579203) is 9830129507293601281056473088000
-
The
square root of 21421657920 is 146361.3949099965 -
The
cube root of 21421657920 is 2777.2673802195
Scales and comparisons
How big is 21421657920?- 21,421,657,920 seconds is equal to 681 years, 7 weeks, 2 days, 20 hours, 32 minutes.
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To count from 1 to 21,421,657,920 would take you about one thousand, three hundred sixty-two 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 21421657920 cubic inches would be around 231.4 feet tall.
Recreational maths with 21421657920
- 21421657920 backwards is 02975612412
- 21421657920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21421657920's digits is 39
- More coming soon!
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The information we have on file for 21421657920 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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