81026821324800

Names of 81026821324800

• Cardinal: 81026821324800 can be written as Eighty-one trillion, twenty-six billion, eight hundred twenty-one million, three hundred twenty-four thousand, eight hundred.

Scientific notation

• Scientific notation: 8.10268213248 × 10¹³

Factors of 81026821324800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 23
• Sum of prime factors: 140920

Divisors of 81026821324800

• Number of divisors d(n): 816
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 27 30 32 36 39 40 45 48 50 52 54 60 64 65 72 75 78 80 90 96 100 104 108 117 120 128 130 135 144 150 156 160 180 192 195 200 208 216 225 234 240 256 260 270 288 300 312 320 325 351 360 384 390 400 416 432 450 468 480 512 520 540 576 585 600 624 640 650 675 702 720 768 780 800 832 864 900 936 960 975 1024 1040 1080 1152 1170 1200 1248 1280 1300 1350 1404 1440 1536 1560 1600 1664 1728 1755 1800 1872 1920 1950 2048 2080 2160 2304 2340 2400 2496 2560 2600 2700 2808 2880 2925 3072 3120 3200 3328 3456 3510 3600 3744 3840 3900 4096 4160 4320 4608 4680 4800 4992 5120 5200 5400 5616 5760 5850 6144 6240 6400 6656 6912 7020 7200 7488 7680 7800 8192 8320 8640 8775 9216 9360 9600 9984 10240 10400 10800 11232 11520 11700 12288 12480 12800 13312 13824 14040 14400 14976 15360 15600 16384 16640 17280 17550 18432 18720 19200 19968 20480 20800 21600 22464 23040 23400 24576 24960 25600 26624 27648 28080 28800 29952 30720 31200 32768 33280 34560 35100 36864 37440 38400 39936 40960 41600 43200 44928 46080 46800 49152 49920 51200 53248 55296 56160 57600 59904 61440 62400 65536 66560 69120 70200 73728 74880 76800 79872 81920 83200 86400 89856 92160 93600 98304 99840 102400 106496 110592 112320 115200 119808 122880 124800 133120 138240 140400 140897 147456 149760 153600 159744 163840 166400 172800 179712 184320 187200 196608 199680 204800 212992 221184 224640 230400 239616 245760 249600 266240 276480 280800 281794 294912 299520 307200 319488 327680 332800 345600 359424 368640 374400 399360 409600 422691 425984 442368 449280 460800 479232 491520 499200 532480 552960 561600 563588 589824 599040 614400 638976 665600 691200 704485 718848 737280 748800 798720 819200 845382 851968 884736 898560 921600 958464 983040 998400 1064960 1105920 1123200 1127176 1198080 1228800 1268073 1277952 1331200 1382400 1408970 1437696 1474560 1497600 1597440 1638400 1690764 1769472 1797120 1831661 1843200 1916928 1996800 2113455 2129920 2211840 2246400 2254352 2396160 2457600 2536146 2555904 2662400 2764800 2817940 2875392 2949120 2995200 3194880 3381528 3522425 3594240 3663322 3686400 3804219 3833856 3993600 4226910 4259840 4423680 4492800 4508704 4792320 4915200 5072292 5324800 5494983 5529600 5635880 5750784 5990400 6340365 6389760 6763056 7044850 7188480 7326644 7372800 7608438 7667712 7987200 8453820 8847360 8985600 9017408 9158305 9584640 10144584 10567275 10649600 10989966 11059200 11271760 11501568 11980800 12680730 12779520 13526112 14089700 14376960 14653288 14745600 15216876 15974400 16484949 16907640 17971200 18034816 18316610 19021095 19169280 20289168 21134550 21299200 21979932 22118400 22543520 23003136 23961600 25361460 27052224 27474915 28179400 28753920 29306576 30433752 31701825 31948800 32969898 33815280 35942400 36069632 36633220 38042190 38338560 40578336 42269100 43959864 44236800 45087040 45791525 47923200 49454847 50722920 54104448 54949830 56358800 57507840 58613152 60867504 63403650 63897600 65939796 67630560 71884800 72139264 73266440 76084380 81156672 82424745 84538200 87919728 90174080 91583050 95105475 95846400 98909694 101445840 108208896 109899660 112717600 115015680 117226304 121735008 126807300 131879592 135261120 137374575 143769600 144278528 146532880 152168760 162313344 164849490 169076400 175839456 180348160 183166100 190210950 191692800 197819388 202891680 216417792 219799320 225435200 234452608 243470016 247274235 253614600 263759184 270522240 274749150 287539200 288557056 293065760 304337520 324626688 329698980 338152800 351678912 360696320 366332200 380421900 395638776 405783360 412123725 432835584 439598640 450870400 468905216 486940032 494548470 507229200 527518368 541044480 549498300 575078400 577114112 586131520 608675040 649253376 659397960 676305600 703357824 721392640 732664400 760843800 791277552 811566720 824247450 865671168 879197280 901740800 937810432 973880064 989096940 1014458400 1055036736 1082088960 1098996600 1154228224 1172263040 1217350080 1236371175 1298506752 1318795920 1352611200 1406715648 1442785280 1465328800 1521687600 1582555104 1623133440 1648494900 1731342336 1758394560 1803481600 1875620864 1947760128 1978193880 2028916800 2110073472 2164177920 2197993200 2308456448 2344526080 2434700160 2472742350 2597013504 2637591840 2705222400 2813431296 2885570560 2930657600 3043375200 3165110208 3246266880 3296989800 3462684672 3516789120 3606963200 3751241728 3895520256 3956387760 4057833600 4220146944 4328355840 4395986400 4616912896 4689052160 4869400320 4945484700 5194027008 5275183680 5410444800 5626862592 5771141120 5861315200 6086750400 6330220416 6492533760 6593979600 6925369344 7033578240 7213926400 7502483456 7791040512 7912775520 8115667200 8440293888 8656711680 8791972800 9233825792 9378104320 9738800640 9890969400 10388054016 10550367360 10820889600 11253725184 11542282240 11722630400 12173500800 12660440832 12985067520 13187959200 13850738688 14067156480 14427852800 15004966912 15582081024 15825551040 16231334400 16880587776 17313423360 17583945600 18756208640 19477601280 19781938800 20776108032 21100734720 21641779200 22507450368 23084564480 23445260800 24347001600 25320881664 25970135040 26375918400 27701477376 28134312960 28855705600 30009933824 31164162048 31651102080 32462668800 33761175552 34626846720 35167891200 37512417280 38955202560 39563877600 41552216064 42201469440 43283558400 45014900736 46169128960 46890521600 48694003200 50641763328 51940270080 52751836800 56268625920 57711411200 60019867648 62328324096 63302204160 64925337600 67522351104 69253693440 70335782400 75024834560 77910405120 79127755200 83104432128 84402938880 86567116800 90029801472 93781043200 97388006400 101283526656 103880540160 105503673600 112537251840 115422822400 120039735296 124656648192 126604408320 129850675200 135044702208 138507386880 140671564800 150049669120 155820810240 158255510400 168805877760 173134233600 180059602944 187562086400 194776012800 202567053312 207761080320 211007347200 225074503680 230845644800 249313296384 253208816640 259701350400 270089404416 281343129600 300099338240 311641620480 316511020800 337611755520 346268467200 360119205888 375124172800 389552025600 405134106624 415522160640 422014694400 450149007360 506417633280 519402700800 540178808832 562686259200 600198676480 623283240960 633022041600 675223511040 692536934400 750248345600 779104051200 810268213248 844029388800 900298014720 1012835266560 1038805401600 1080357617664 1125372518400 1246566481920 1266044083200 1350447022080 1500496691200 1558208102400 1620536426496 1688058777600 1800596029440 2025670533120 2077610803200 2250745036800 2532088166400 2700894044160 3000993382400 3116416204800 3241072852992 3376117555200 4051341066240 4501490073600 5064176332800 5401788088320 6232832409600 6752235110400 8102682132480 9002980147200 10128352665600 13504470220800 16205364264960 20256705331200 27008940441600 40513410662400 81026821324800
• Sum of all divisors σ(n): 320598260918880
• Sum of proper divisors (its aliquot sum) s(n): 239571439594080
• 81026821324800 is an abundant number, because the sum of its proper divisors (239571439594080) is greater than itself. Its abundance is 158544618269280

Bases of 81026821324800

• Binary: 10010011011000110000110111001110000000000000000₂
• Hexadecimal: 0x49B186E70000
• Base-36: SPZ7HD6O0

Squares and roots of 81026821324800

• 81026821324800 squared (81026821324800²) is 6565345774001064027095040000
• 81026821324800 cubed (81026821324800³) is 531969098965514976128514552068308992000000
• The square root of 81026821324800 is 9001489.9502693441
• The cube root of 81026821324800 is 43272.2622666643

Scales and comparisons

• 81,026,821,324,800 seconds is equal to 2,576,402 years, 14 weeks, 6 days.
• To count from 1 to 81,026,821,324,800 would take you about six million, four hundred forty-one thousand and five 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 81026821324800 cubic inches would be around 3606 feet tall.

Recreational maths with 81026821324800

• 81026821324800 backwards is 00842312862018
• 81026821324800 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81026821324800's digits is 45
• More coming soon!