81844105728

Names of 81844105728

• Cardinal: 81844105728 can be written as Eighty-one billion, eight hundred forty-four million, one hundred five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 8.1844105728 × 10¹⁰

Factors of 81844105728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 85

Divisors of 81844105728

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 19 21 22 24 28 32 33 38 42 43 44 48 49 56 57 64 66 76 77 84 86 88 96 98 112 114 121 128 129 132 133 147 152 154 168 172 176 192 196 209 224 228 231 242 256 258 264 266 294 301 304 308 336 344 352 363 384 392 399 418 448 456 462 473 484 512 516 528 532 539 588 602 608 616 627 672 688 704 726 768 784 798 817 836 847 896 903 912 924 931 946 968 1032 1056 1064 1078 1176 1204 1216 1232 1254 1331 1344 1376 1408 1419 1452 1463 1536 1568 1596 1617 1634 1672 1694 1792 1806 1824 1848 1862 1892 1936 2064 2107 2112 2128 2156 2299 2352 2408 2432 2451 2464 2508 2541 2662 2688 2752 2793 2816 2838 2904 2926 3136 3192 3234 3268 3311 3344 3388 3584 3612 3648 3696 3724 3784 3872 3993 4128 4214 4224 4256 4312 4389 4598 4704 4816 4864 4902 4928 5016 5082 5203 5324 5376 5504 5586 5632 5676 5719 5808 5852 5929 6272 6321 6384 6468 6536 6622 6688 6776 6897 7224 7296 7392 7448 7568 7744 7986 8256 8428 8448 8512 8624 8778 8987 9196 9317 9408 9632 9728 9804 9856 9933 10032 10164 10241 10406 10648 10752 11008 11172 11352 11438 11616 11704 11858 12544 12642 12768 12936 13072 13244 13376 13552 13794 14448 14592 14784 14896 15136 15488 15609 15972 16093 16512 16856 16896 17024 17157 17248 17556 17787 17974 18392 18634 18816 19264 19608 19712 19866 20064 20328 20482 20812 21296 22016 22344 22704 22876 23177 23232 23408 23716 25088 25284 25289 25536 25872 26144 26488 26752 26961 27104 27588 27951 28896 29184 29568 29792 30272 30723 30976 31218 31944 32186 33024 33712 34048 34314 34496 35112 35574 35948 36421 36784 37268 37632 38528 39216 39424 39732 40033 40128 40656 40964 41624 42592 44688 45408 45752 46354 46464 46816 47432 48279 50568 50578 51072 51744 52288 52976 53504 53922 54208 55176 55902 57233 57792 59136 59584 60544 61446 61952 62436 62909 63888 64372 65219 66048 67424 68096 68628 68992 69531 70224 71148 71896 72842 73568 74536 75264 75867 77056 78432 79464 80066 80256 81312 81928 83248 85184 89376 90816 91504 92708 92928 93632 94864 96558 98857 101136 101156 102144 103488 104576 105952 107008 107844 108416 109263 110352 111804 112651 114466 115584 118272 119168 120099 121088 122892 124872 125818 127776 128744 130438 134848 137256 137984 139062 140448 142296 143792 145684 147136 149072 151734 154112 156864 158928 160132 160512 162624 163856 166496 170368 171699 177023 178752 181632 183008 185416 185856 187264 188727 189728 193116 195657 197714 202272 202312 204288 206976 209152 211904 215688 216832 218526 220704 223608 225302 228932 231168 238336 240198 242176 245784 249744 251636 254947 255552 257488 260876 269696 274512 275968 278124 280896 284592 287584 291368 294272 296571 298144 303468 313728 317856 320264 321024 325248 327712 332992 337953 340736 343398 354046 357504 363264 366016 370832 374528 377454 379456 386232 391314 395428 400631 404544 404624 413952 418304 423808 431376 433664 437052 440363 441408 447216 450604 457864 462336 476672 480396 491568 499488 503272 509894 511104 514976 521752 531069 539392 549024 556248 561792 569184 575168 582736 588544 593142 596288 606936 627456 635712 640528 650496 655424 665984 675906 681472 686796 691999 708092 715008 726528 732032 741664 749056 754908 758912 764841 772464 782628 790856 801262 809088 809248 827904 847616 862752 874104 880726 882816 894432 901208 915728 960792 983136 998976 1006544 1019788 1022208 1029952 1043504 1062138 1078784 1087427 1098048 1112496 1123584 1138368 1150336 1165472 1177088 1186284 1192576 1201893 1213872 1239161 1254912 1271424 1281056 1300992 1310848 1321089 1331968 1351812 1373592 1383998 1416184 1430016 1464064 1483328 1509816 1517824 1529682 1544928 1565256 1581712 1602524 1618176 1618496 1695232 1725504 1748208 1761452 1765632 1788864 1802416 1831456 1921584 1966272 1997952 2013088 2039576 2044416 2059904 2075997 2087008 2124276 2174854 2196096 2224992 2247168 2276736 2300672 2330944 2372568 2385152 2403786 2427744 2478322 2542848 2562112 2621696 2642178 2663936 2703624 2747184 2767996 2804417 2832368 2928128 2966656 3019632 3035648 3059364 3089856 3130512 3163424 3205048 3236352 3236992 3262281 3451008 3496416 3522904 3531264 3577728 3604832 3662912 3717483 3843168 3932544 3995904 4026176 4079152 4119808 4151994 4174016 4248552 4349708 4392192 4449984 4553472 4601344 4661888 4745136 4770304 4807572 4843993 4855488 4956644 5085696 5124224 5243392 5284356 5407248 5494368 5535992 5608834 5664736 5933312 6039264 6118728 6179712 6261024 6326848 6410096 6473984 6524562 6902016 6992832 7045808 7155456 7209664 7325824 7434966 7611989 7686336 7865088 7991808 8052352 8158304 8239616 8303988 8348032 8413251 8497104 8699416 8784384 8899968 9106944 9323776 9490272 9615144 9687986 9710976 9913288 10248448 10568712 10814496 10988736 11071984 11217668 11329472 11866624 12078528 12237456 12359424 12522048 12653696 12820192 12947968 13049124 13804032 13985664 14091616 14310912 14419328 14531979 14651648 14869932 15223978 15372672 15730176 16104704 16316608 16607976 16696064 16826502 16994208 17398832 17799936 18647552 18980544 19230288 19375972 19421952 19826576 20496896 21137424 21628992 21977472 22143968 22435336 22658944 22835967 24157056 24474912 24718848 25044096 25307392 25640384 26098248 27971328 28183232 28838656 29063958 29303296 29739864 30447956 30745344 32209408 32633216 33215952 33392128 33653004 33988416 34797664 35599872 37961088 38460576 38751944 38843904 39653152 42274848 43257984 43954944 44287936 44870672 45317888 45671934 48314112 48949824 50088192 50614784 51280768 52196496 53283923 55942656 56366464 57677312 58127916 59479728 60895912 61490688 65266432 66431904 67306008 67976832 69595328 75922176 76921152 77503888 79306304 84549696 86515968 87909888 88575872 89741344 90635776 91343868 96628224 97899648 100176384 102561536 104392992 106567846 112732928 116255832 118959456 121791824 130532864 132863808 134612016 135953664 139190656 151844352 153842304 155007776 158612608 159851769 169099392 173031936 177151744 179482688 182687736 195799296 205123072 208785984 213135692 225465856 232511664 237918912 243583648 265727616 269224032 271907328 278381312 307684608 310015552 317225216 319703538 338198784 354303488 358965376 365375472 391598592 417571968 426271384 465023328 475837824 487167296 531455232 538448064 556762624 615369216 620031104 634450432 639407076 676397568 717930752 730750944 835143936 852542768 930046656 951675648 974334592 1062910464 1076896128 1240062208 1278814152 1435861504 1461501888 1670287872 1705085536 1860093312 1903351296 1948669184 2153792256 2480124416 2557628304 2923003776 3410171072 3720186624 3897338368 4307584512 5115256608 5846007552 6820342144 7440373248 10230513216 11692015104 13640684288 20461026432 27281368576 40922052864 81844105728
• Sum of all divisors σ(n): 300492910080
• Sum of proper divisors (its aliquot sum) s(n): 218648804352
• 81844105728 is an abundant number, because the sum of its proper divisors (218648804352) is greater than itself. Its abundance is 136804698624

Bases of 81844105728

• Binary: 1001100001110010010011111001000000000₂
• Hexadecimal: 0x130E49F200
• Base-36: 11LJV85C

Squares and roots of 81844105728

• 81844105728 squared (81844105728²) is 6698457642416042409984
• 81844105728 cubed (81844105728³) is 548229275500428192366062418788352
• The square root of 81844105728 is 286084.0885613879
• The cube root of 81844105728 is 4341.7265693631

Scales and comparisons

• 81,844,105,728 seconds is equal to 2,602 years, 20 weeks, 1 day, 17 hours, 48 minutes, 48 seconds.
• To count from 1 to 81,844,105,728 would take you about five thousand, two hundred four 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 81844105728 cubic inches would be around 361.8 feet tall.

Recreational maths with 81844105728

• 81844105728 backwards is 82750144818
• 81844105728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81844105728's digits is 48
• More coming soon!