820643138640
820,643,138,640 is an even composite number composed of five prime numbers multiplied together.
820643138640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 820643138640:
24 × 33 × 5 × 132 × 1313
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 13 × 13 × 131 × 131 × 131)See below for interesting mathematical facts about the number 820643138640 from the Numbermatics database.
Names of 820643138640
- Cardinal: 820643138640 can be written as Eight hundred twenty billion, six hundred forty-three million, one hundred thirty-eight thousand, six hundred forty.
Scientific notation
- Scientific notation: 8.2064313864 × 1011
Factors of 820643138640
Divisors of 820643138640
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 36 39 40 45 48 52 54 60 65 72 78 80 90 104 108 117 120 130 131 135 144 156 169 180 195 208 216 234 240 260 262 270 312 338 351 360 390 393 432 468 507 520 524 540 585 624 655 676 702 720 780 786 845 936 1014 1040 1048 1080 1170 1179 1310 1352 1404 1521 1560 1572 1690 1703 1755 1872 1965 2028 2096 2160 2340 2358 2535 2620 2704 2808 3042 3120 3144 3380 3406 3510 3537 3930 4056 4563 4680 4716 5070 5109 5240 5616 5895 6084 6288 6760 6812 7020 7074 7605 7860 8112 8515 9126 9360 9432 10140 10218 10480 11790 12168 13520 13624 14040 14148 15210 15327 15720 17030 17161 17685 18252 18864 20280 20436 22139 22815 23580 24336 25545 27248 28080 28296 30420 30654 31440 34060 34322 35370 36504 40560 40872 44278 45630 45981 47160 51090 51483 56592 60840 61308 66417 68120 68644 70740 73008 76635 81744 85805 88556 91260 91962 94320 102180 102966 110695 121680 122616 132834 136240 137288 141480 153270 154449 171610 177112 182520 183924 199251 204360 205932 221390 223093 229905 245232 257415 265668 274576 282960 306540 308898 332085 343220 354224 365040 367848 398502 408720 411864 442780 446186 459810 463347 514830 531336 597753 613080 617796 664170 669279 686440 735696 772245 797004 823728 885560 892372 919620 926694 996255 1029660 1062672 1115465 1195506 1226160 1235592 1328340 1338558 1372880 1544490 1594008 1771120 1784744 1839240 1853388 1992510 2007837 2059320 2230930 2248091 2316735 2391012 2471184 2656680 2677116 2900209 2988765 3088980 3188016 3346395 3569488 3678480 3706776 3985020 4015674 4118640 4461860 4496182 4633470 4782024 5313360 5354232 5800418 5977530 6023511 6177960 6692790 6744273 7413552 7970040 8031348 8700627 8923720 8992364 9266940 9564048 10039185 10708464 11240455 11600836 11955060 12047022 12355920 13385580 13488546 14501045 15940080 16062696 17401254 17847440 17984728 18533880 20078370 20232819 22480910 23201672 23910120 24094044 26101881 26771160 26977092 29002090 29225183 30117555 32125392 33721365 34802508 35969456 37067760 40156740 40465638 43503135 44961820 46403344 47820240 48188088 52203762 53542320 53954184 58004180 58450366 60235110 60698457 67442730 69605016 78305643 80313480 80931276 87006270 87675549 89923640 96376176 101164095 104407524 107908368 116008360 116900732 120470220 121396914 130509405 134885460 139210032 146125915 156611286 160626960 161862552 174012540 175351098 179847280 202328190 208815048 232016720 233801464 240940440 242793828 261018810 263026647 269770920 292251830 303492285 313222572 323725104 348025080 350702196 379927379 391528215 404656380 417630096 438377745 467602928 481880880 485587656 522037620 526053294 539541840 584503660 606984570 626445144 696050160 701404392 759854758 783056430 789079941 809312760 876755490 971175312 1044075240 1052106588 1139782137 1169007320 1213969140 1252890288 1315133235 1402808784 1519709516 1566112860 1578159882 1618625520 1753510980 1899636895 2088150480 2104213176 2279564274 2338014640 2427938280 2630266470 3039419032 3132225720 3156319764 3419346411 3507021960 3799273790 3945399705 4208426352 4559128548 4855876560 5260532940 5698910685 6078838064 6264451440 6312639528 6838692822 7014043920 7598547580 7890799410 9118257096 10258039233 10521065880 11397821370 12625279056 13677385644 15197095160 15781598820 17096732055 18236514192 20516078466 21042131760 22795642740 27354771288 30394190320 31563197640 34193464110 41032156932 45591285480 51290196165 54709542576 63126395280 68386928220 82064313864 91182570960 102580392330 136773856440 164128627728 205160784660 273547712880 410321569320 820643138640
- Sum of all divisors σ(n): 3084365623680
- Sum of proper divisors (its aliquot sum) s(n): 2263722485040
- 820643138640 is an abundant number, because the sum of its proper divisors (2263722485040) is greater than itself. Its abundance is 1443079346400
Bases of 820643138640
- Binary: 10111111000100100010010010001100010100002
- Hexadecimal: 0xBF12248C50
- Base-36: AGZXQIC0
Squares and roots of 820643138640
- 820643138640 squared (8206431386402) is 673455160996910261049600
- 820643138640 cubed (8206431386403) is 552666357053810947970165484716544000
-
The
square root of 820643138640 is 905893.5581181709 -
The
cube root of 820643138640 is 9362.3480220439
Scales and comparisons
How big is 820643138640?- 820,643,138,640 seconds is equal to 26,093 years, 47 weeks, 3 days, 11 hours, 24 minutes.
-
To count from 1 to 820,643,138,640 would take you about fifty-two thousand, one hundred eighty-seven 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 820643138640 cubic inches would be around 780.2 feet tall.
Recreational maths with 820643138640
- 820643138640 backwards is 046831346028
- 820643138640 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 820643138640's digits is 45
- More coming soon!
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