810420409890

Names of 810420409890

• Cardinal: 810420409890 can be written as Eight hundred ten billion, four hundred twenty million, four hundred nine thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 8.1042040989 × 10¹¹

Factors of 810420409890

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 512

Divisors of 810420409890

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 35 39 42 45 53 61 63 65 70 78 90 91 105 106 117 122 126 127 130 159 182 183 195 210 234 241 254 265 273 305 315 318 366 371 381 390 427 455 477 482 530 546 549 585 610 630 635 689 723 742 762 793 795 819 854 889 910 915 954 1098 1113 1143 1170 1205 1270 1281 1365 1378 1446 1586 1590 1638 1651 1687 1778 1830 1855 1905 2067 2135 2169 2226 2286 2379 2385 2410 2562 2667 2730 2745 3133 3233 3302 3339 3374 3445 3615 3710 3810 3843 3965 4095 4134 4270 4338 4445 4758 4770 4823 4953 5061 5334 5490 5551 5565 5715 6201 6266 6405 6466 6678 6731 6890 7137 7230 7686 7747 7930 8001 8190 8255 8435 8890 9399 9646 9699 9906 10122 10335 10845 11102 11130 11430 11557 11895 12402 12773 12810 13335 13462 14274 14469 14701 14859 15183 15494 15665 16002 16165 16510 16653 16695 16870 18798 19215 19398 20193 20670 21690 21931 22631 23114 23241 23790 24115 24765 25305 25546 26670 27755 28197 28938 29097 29402 29718 30366 30607 31005 31330 32330 33306 33390 33655 34671 35685 38319 38430 38735 40005 40386 42029 43407 43862 44103 45262 46482 46995 47117 48230 48495 49530 49959 50610 54229 55510 56394 57785 58194 60579 61214 62010 63865 65793 67310 67893 69342 69723 71370 72345 73505 74295 75915 76638 77470 80010 83265 84058 86814 87503 88206 89411 91821 93990 94234 96990 99918 100711 100965 102907 104013 108458 109655 113155 114957 115570 116205 121158 126087 127730 131586 132309 135786 139446 140985 141351 144690 145485 147010 148590 151830 153035 162687 166049 166530 173355 175006 178822 183642 191113 191595 197379 201422 201930 203679 205814 208026 210145 214249 217035 219310 220515 226310 229914 232410 235585 249795 252174 262509 264618 268233 271145 275463 281970 282702 290970 294203 302133 302895 306070 308721 325374 328965 332098 339465 346710 348615 378261 382226 383190 394758 397891 407358 410591 420290 424053 428498 434070 437515 441030 447055 459105 471170 488061 498147 499590 503555 514535 520065 525018 536466 542290 550926 573339 574785 588406 604266 605790 612521 617442 630435 642747 657930 661545 678930 697230 704977 706755 756522 779153 787527 795782 804699 813435 821182 830245 848106 875030 882609 894110 906399 918210 926163 955565 976122 986895 996294 1007110 1018395 1029070 1040130 1071245 1146678 1149570 1162343 1193673 1225042 1231773 1260870 1285494 1312545 1323090 1337791 1341165 1377315 1409954 1413510 1471015 1494441 1510665 1543605 1558306 1575054 1609398 1622171 1626870 1660490 1720017 1765218 1812798 1837563 1852326 1867027 1891305 1911130 1928241 1973790 1989455 2036790 2052955 2114931 2120265 2142490 2324686 2337459 2387346 2440305 2463546 2490735 2625090 2647827 2675582 2682330 2754630 2785237 2866695 2874137 2942030 2988882 3021330 3062605 3087210 3213735 3244342 3440034 3487029 3524885 3581019 3675126 3695319 3734054 3782610 3856482 3895765 3937635 3978910 4013373 4023495 4105910 4229862 4240530 4413045 4531995 4630815 4674918 4866513 4880610 4981470 5295654 5337683 5454071 5512689 5570474 5601081 5733390 5748274 5811715 5968365 6125210 6158865 6344793 6427470 6688955 6974058 7012377 7049770 7162038 7390638 7472205 7791530 7875270 8026746 8046990 8110855 8355711 8600085 8622411 8826090 9063990 9187815 9261630 9335135 9641205 9733026 10128989 10461087 10574655 10675366 10908142 11025378 11202162 11355197 11623430 11687295 11936730 12040119 12317730 12689586 13069189 13239135 13377910 13926185 14024754 14370685 14599539 14944410 16013049 16221710 16362213 16711422 16803243 17200170 17244822 17435145 17905095 18375630 18476595 18670270 19282410 20066865 20257978 20922174 21088223 21149310 22710394 23374590 24080238 24271351 24332565 25067133 25867233 26138378 26478270 26688415 27270355 27563445 27852370 28005405 28741370 29199078 30386967 31723965 32026098 32724426 33606486 34065591 34870290 35061885 35810190 36953190 37363781 39207567 40133730 41778555 42176446 43112055 48039147 48542702 48665130 49086639 50134266 50644945 51734466 52305435 53376830 54540710 55126890 56010810 56775985 60200595 60773934 63264669 63447930 65345945 68131182 70123770 70902923 72814053 72997695 74727562 78415134 80065245 81811065 83557110 84016215 86224110 91160901 96078294 98173278 98952431 101289890 102196773 104610870 105441115 112091343 113551970 117622701 120401190 121356755 125335665 126529338 129336165 130691890 141805846 145628106 145995390 147617561 151934835 160130490 163622130 168032430 169899457 170327955 182321802 186818905 189794007 196037835 197904862 204393546 210882230 212708769 218442159 224182686 235245402 240195735 242713510 245433195 250671330 258672330 295235122 296857293 303869670 316323345 336274029 339798914 340655910 354514615 364070265 373637810 379588014 392075670 425417538 436884318 442852683 455804505 480391470 490866390 494762155 509698371 510983865 560456715 588113505 593714586 632646690 638126307 672548058 692667017 709029230 728140530 738087805 849497285 885705366 890571879 911609010 948970035 989524310 1019396742 1021967730 1063543845 1092210795 1120913430 1176227010 1276252614 1286381603 1328558049 1385334034 1476175610 1484286465 1529095113 1681370145 1698994570 1781143758 1897940070 2078001051 2127087690 2184421590 2214263415 2548491855 2572763206 2657116098 2968572930 3058190226 3190631535 3362740290 3463335085 3859144809 4156002102 4428526830 4452859395 5096983710 6234003153 6381263070 6431908015 6642790245 6926670170 7645475565 7718289618 8905718790 9004671221 10390005255 11577434427 12468006306 12863816030 13285580490 15290951130 18009342442 19295724045 20780010510 23154868854 27014013663 31170015765 38591448090 45023356105 54028027326 57887172135 62340031530 81042040989 90046712210 115774344270 135070068315 162084081978 270140136630 405210204945 810420409890
• Sum of all divisors σ(n): 2717970038784
• Sum of proper divisors (its aliquot sum) s(n): 1907549628894
• 810420409890 is an abundant number, because the sum of its proper divisors (1907549628894) is greater than itself. Its abundance is 1097129219004

Bases of 810420409890

• Binary: 1011110010110000110100100001011000100010₂
• Hexadecimal: 0xBCB0D21622
• Base-36: ACAVDYCI

Squares and roots of 810420409890

• 810420409890 squared (810420409890²) is 656781240766275609812100
• 810420409890 cubed (810420409890³) is 532268922349867857392631787881669000
• The square root of 810420409890 is 900233.5307518821
• The cube root of 810420409890 is 9323.3099688969

Scales and comparisons

• 810,420,409,890 seconds is equal to 25,768 years, 44 weeks, 5 days, 20 hours, 31 minutes, 30 seconds.
• To count from 1 to 810,420,409,890 would take you about fifty-one thousand, five hundred thirty-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 810420409890 cubic inches would be around 776.9 feet tall.

Recreational maths with 810420409890

• 810420409890 backwards is 098904024018
• 810420409890 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 810420409890's digits is 45
• More coming soon!