81980040806400

Names of 81980040806400

• Cardinal: 81980040806400 can be written as Eighty-one trillion, nine hundred eighty billion, forty million, eight hundred six thousand, four hundred.

Scientific notation

• Scientific notation: 8.19800408064 × 10¹³

Factors of 81980040806400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 25
• Sum of prime factors: 62

Divisors of 81980040806400

• Number of divisors d(n): 1296
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 32 33 40 41 44 48 50 55 60 64 66 75 80 82 88 96 100 110 120 121 123 128 132 150 160 164 165 176 192 200 205 220 240 242 246 256 264 275 300 320 328 330 352 363 384 400 410 440 451 480 484 492 512 528 550 600 605 615 640 656 660 704 726 768 800 820 825 880 902 960 968 984 1024 1025 1056 1100 1200 1210 1230 1280 1312 1320 1353 1408 1452 1536 1600 1640 1650 1681 1760 1804 1815 1920 1936 1968 2048 2050 2112 2200 2255 2400 2420 2460 2560 2624 2640 2706 2816 2904 3025 3072 3075 3200 3280 3300 3362 3520 3608 3630 3840 3872 3936 4096 4100 4224 4400 4510 4800 4840 4920 4961 5043 5120 5248 5280 5412 5632 5808 6050 6144 6150 6400 6560 6600 6724 6765 7040 7216 7260 7680 7744 7872 8192 8200 8405 8448 8800 9020 9075 9600 9680 9840 9922 10086 10240 10496 10560 10824 11264 11275 11616 12100 12288 12300 12800 13120 13200 13448 13530 14080 14432 14520 14883 15360 15488 15744 16384 16400 16810 16896 17600 18040 18150 18491 19200 19360 19680 19844 20172 20480 20992 21120 21648 22528 22550 23232 24200 24576 24600 24805 25215 25600 26240 26400 26896 27060 28160 28864 29040 29766 30720 30976 31488 32768 32800 33620 33792 33825 35200 36080 36300 36982 38400 38720 39360 39688 40344 40960 41984 42025 42240 43296 45056 45100 46464 48400 49152 49200 49610 50430 51200 52480 52800 53792 54120 55473 56320 57728 58080 59532 61440 61952 62976 65536 65600 67240 67584 67650 68921 70400 72160 72600 73964 74415 76800 77440 78720 79376 80688 81920 83968 84050 84480 86592 90112 90200 92455 92928 96800 98304 98400 99220 100860 102400 104960 105600 107584 108240 110946 112640 115456 116160 119064 122880 123904 124025 125952 126075 131072 131200 134480 135168 135300 137842 140800 144320 145200 147928 148830 153600 154880 157440 158752 161376 163840 167936 168100 168960 173184 180224 180400 184910 185856 193600 196608 196800 198440 201720 203401 204800 206763 209920 211200 215168 216480 221892 225280 230912 232320 238128 245760 247808 248050 251904 252150 262400 268960 270336 270600 275684 277365 281600 288640 290400 295856 297660 307200 309760 314880 317504 322752 327680 335872 336200 337920 344605 346368 360448 360800 369820 371712 372075 387200 393216 393600 396880 403440 406802 409600 413526 419840 422400 430336 432960 443784 450560 461824 462275 464640 476256 491520 495616 496100 503808 504300 524800 537920 540672 541200 551368 554730 563200 577280 580800 591712 595320 610203 614400 619520 629760 635008 645504 655360 671744 672400 675840 689210 692736 720896 721600 739640 743424 744150 758131 774400 787200 793760 806880 813604 819200 827052 839680 844800 860672 865920 887568 901120 923648 924550 929280 952512 983040 991232 992200 1007616 1008600 1017005 1033815 1049600 1075840 1081344 1082400 1102736 1109460 1126400 1154560 1161600 1183424 1190640 1220406 1228800 1239040 1259520 1270016 1291008 1343488 1344800 1351680 1378420 1385472 1386825 1441792 1443200 1479280 1486848 1488300 1516262 1548800 1574400 1587520 1613760 1627208 1638400 1654104 1679360 1689600 1721344 1723025 1731840 1775136 1802240 1847296 1849100 1858560 1905024 1966080 1982464 1984400 2015232 2017200 2034010 2067630 2099200 2151680 2162688 2164800 2205472 2218920 2252800 2274393 2309120 2323200 2366848 2381280 2440812 2457600 2478080 2519040 2540032 2582016 2686976 2689600 2703360 2756840 2770944 2773650 2886400 2958560 2973696 2976600 3032524 3051015 3097600 3148800 3175040 3227520 3254416 3276800 3308208 3358720 3379200 3442688 3446050 3463680 3550272 3604480 3694592 3698200 3717120 3790655 3810048 3964928 3968800 4030464 4034400 4068020 4135260 4198400 4303360 4325376 4329600 4410944 4437840 4505600 4548786 4618240 4646400 4733696 4762560 4881624 4915200 4956160 5038080 5080064 5085025 5164032 5169075 5373952 5379200 5406720 5513680 5541888 5547300 5772800 5917120 5947392 5953200 6065048 6102030 6195200 6297600 6350080 6455040 6508832 6616416 6717440 6758400 6885376 6892100 6927360 7100544 7208960 7389184 7396400 7434240 7581310 7620096 7929856 7937600 8060928 8068800 8136040 8270520 8339441 8396800 8606720 8659200 8821888 8875680 9011200 9097572 9236480 9292800 9467392 9525120 9763248 9830400 9912320 10076160 10160128 10170050 10328064 10338150 10758400 10813440 11027360 11083776 11094600 11371965 11545600 11834240 11894784 11906400 12130096 12204060 12390400 12595200 12700160 12910080 13017664 13232832 13434880 13516800 13770752 13784200 13854720 14201088 14778368 14792800 14868480 15162620 15240192 15255075 15859712 15875200 16121856 16137600 16272080 16541040 16678882 16793600 17213440 17318400 17643776 17751360 18022400 18195144 18472960 18585600 18934784 18953275 19050240 19526496 19824640 20152320 20320256 20340100 20656128 20676300 21516800 21626880 22054720 22167552 22189200 22743930 23091200 23668480 23789568 23812800 24260192 24408120 24780800 25018323 25190400 25400320 25820160 26035328 26465664 26869760 27033600 27541504 27568400 27709440 28402176 29556736 29585600 29736960 30325240 30480384 30510150 31750400 32275200 32544160 33082080 33357764 33587200 34426880 34636800 35287552 35502720 36044800 36390288 36945920 37171200 37869568 37906550 38100480 39052992 39649280 40304640 40640512 40680200 41312256 41352600 41697205 43033600 44109440 44335104 44378400 45487860 46182400 47336960 47579136 47625600 48520384 48816240 49561600 50036646 50380800 50800640 51640320 52070656 52931328 54067200 55083008 55136800 55418880 56804352 56859825 59113472 59171200 59473920 60650480 60960768 61020300 63500800 64550400 65088320 66164160 66715528 67174400 68853760 69273600 70575104 71005440 72780576 73891840 74342400 75739136 75813100 76200960 78105984 79298560 80609280 81281024 81360400 82624512 82705200 83394410 86067200 88218880 88670208 88756800 90975720 92364800 94673920 95251200 97040768 97632480 99123200 100073292 100761600 101601280 103280640 104141312 105862656 108134400 110166016 110273600 110837760 113608704 113719650 118342400 118947840 121300960 121921536 122040600 125091615 127001600 129100800 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533724224 550830080 554188800 564600832 568043520 582244608 594739200 605913088 606504800 609607680 624847872 625458075 650248192 650883200 660996096 661641600 667155280 688537600 705751040 710054400 727805760 738918400 757391360 762009600 776326144 781059840 800586336 812810240 826245120 833130496 833944100 846901248 882188800 886702080 908869632 909757200 946739200 970407680 975372288 976324800 1000732920 1016012800 1032806400 1041413120 1058626560 1067448448 1101660160 1108377600 1129201664 1136087040 1164489216 1189478400 1211826176 1213009600 1219215360 1249695744 1250916150 1301766400 1323283200 1334310560 1377075200 1411502080 1420108800 1455611520 1477836800 1514782720 1524019200 1552652288 1562119680 1601172672 1625620480 1652490240 1666260992 1667888200 1693802496 1764377600 1817739264 1819514400 1893478400 1940815360 1950744576 1952649600 2001465840 2032025600 2065612800 2082826240 2117253120 2134896896 2216755200 2258403328 2272174080 2328978432 2423652352 2426019200 2438430720 2499391488 2501832300 2603532800 2646566400 2668621120 2754150400 2823004160 2840217600 2911223040 3029565440 3048038400 3105304576 3124239360 3202345344 3251240960 3304980480 3332521984 3335776400 3387604992 3528755200 3635478528 3639028800 3786956800 3881630720 3905299200 4002931680 4064051200 4131225600 4165652480 4234506240 4269793792 4433510400 4516806656 4544348160 4657956864 4852038400 4876861440 4998782976 5003664600 5207065600 5293132800 5337242240 5508300800 5646008320 5680435200 5822446080 6059130880 6096076800 6210609152 6248478720 6404690688 6665043968 6671552800 6775209984 7057510400 7270957056 7278057600 7573913600 7763261440 7810598400 8005863360 8128102400 8262451200 8331304960 8469012480 8539587584 9033613312 9088696320 9315913728 9704076800 9753722880 9997565952 10007329200 10414131200 10586265600 10674484480 11292016640 11360870400 11644892160 12118261760 12192153600 12421218304 12496957440 12809381376 13330087936 13343105600 13550419968 14115020800 14556115200 15147827200 15526522880 15621196800 16011726720 16256204800 16524902400 16662609920 16938024960 17079175168 18177392640 18631827456 19408153600 19995131904 20014658400 20828262400 21172531200 21348968960 22584033280 22721740800 23289784320 24384307200 24842436608 24993914880 25618762752 26660175872 26686211200 27100839936 28230041600 29112230400 30295654400 31053045760 31242393600 32023453440 33325219840 33876049920 34158350336 36354785280 37263654912 38816307200 39990263808 40029316800 41656524800 42345062400 42697937920 45168066560 45443481600 46579568640 48768614400 49684873216 49987829760 51237525504 53372422400 56460083200 58224460800 60591308800 62106091520 62484787200 64046906880 66650439680 67752099840 68316700672 74527309824 77632614400 79980527616 80058633600 83313049600 84690124800 85395875840 90886963200 93159137280 99369746432 99975659520 102475051008 106744844800 112920166400 116448921600 124212183040 124969574400 128093813760 133300879360 135504199680 136633401344 149054619648 155265228800 160117267200 166626099200 169380249600 170791751680 181773926400 186318274560 199951319040 204950102016 213489689600 225840332800 232897843200 248424366080 249939148800 256187627520 273266802688 298109239296 310530457600 320234534400 333252198400 338760499200 341583503360 372636549120 399902638080 409900204032 426979379200 465795686400 496848732160 499878297600 512375255040 546533605376 621060915200 640469068800 666504396800 677520998400 683167006720 745273098240 819800408064 853958758400 931591372800 999756595200 1024750510080 1093067210752 1242121830400 1280938137600 1366334013440 1490546196480 1639600816128 1707917516800 1863182745600 1999513190400 2049501020160 2484243660800 2561876275200 2732668026880 3279201632256 3415835033600 3726365491200 4099002040320 5123752550400 5465336053760 6831670067200 7452730982400 8198004080640 10247505100800 13663340134400 16396008161280 20495010201600 27326680268800 40990020403200 81980040806400
• Sum of all divisors σ(n): 305412545877264
• Sum of proper divisors (its aliquot sum) s(n): 223432505070864
• 81980040806400 is an abundant number, because the sum of its proper divisors (223432505070864) is greater than itself. Its abundance is 141452464264464

Bases of 81980040806400

• Binary: 10010101000111101110111001101100000000000000000₂
• Hexadecimal: 0x4A8F77360000
• Base-36: T253ZMTXC

Squares and roots of 81980040806400

• 81980040806400 squared (81980040806400²) is 6720727090619009162280960000
• 81980040806400 cubed (81980040806400³) is 550965481137624321759328580501766144000000
• The square root of 81980040806400 is 9054283.0089632167
• The cube root of 81980040806400 is 43441.2896794983

Scales and comparisons

• 81,980,040,806,400 seconds is equal to 2,606,711 years, 37 weeks, 1 day, 21 hours, 20 minutes.
• To count from 1 to 81,980,040,806,400 would take you about six million, five hundred sixteen thousand, seven hundred seventy-nine 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 81980040806400 cubic inches would be around 3620.1 feet tall.

Recreational maths with 81980040806400

• 81980040806400 backwards is 00460804008918
• 81980040806400 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81980040806400's digits is 48
• More coming soon!