81250446816

Names of 81250446816

• Cardinal: 81250446816 can be written as Eighty-one billion, two hundred fifty million, four hundred forty-six thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 8.1250446816 × 10¹⁰

Factors of 81250446816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 351

Divisors of 81250446816

• Number of divisors d(n): 1080
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 17 18 21 22 24 27 28 32 33 34 36 42 44 48 49 51 54 56 63 66 68 72 77 81 84 88 96 98 99 102 108 112 119 121 126 132 136 144 147 153 154 162 168 176 187 189 196 198 204 216 224 231 238 242 252 264 272 288 294 297 306 308 311 324 336 352 357 363 374 378 392 396 408 432 441 459 462 476 484 504 528 539 544 561 567 588 594 612 616 622 648 672 693 714 726 748 756 784 792 816 833 847 864 882 891 918 924 933 952 968 1008 1056 1071 1078 1089 1122 1134 1176 1188 1224 1232 1244 1296 1309 1323 1377 1386 1428 1452 1496 1512 1568 1584 1617 1632 1666 1683 1694 1764 1782 1836 1848 1866 1904 1936 2016 2057 2079 2142 2156 2177 2178 2244 2268 2352 2376 2448 2464 2488 2499 2541 2592 2618 2646 2754 2772 2799 2856 2904 2992 3024 3168 3213 3234 3267 3332 3366 3388 3421 3528 3564 3672 3696 3732 3808 3872 3927 3969 4114 4158 4284 4312 4354 4356 4488 4536 4704 4752 4851 4896 4976 4998 5049 5082 5236 5287 5292 5508 5544 5598 5712 5808 5929 5984 6048 6171 6237 6426 6468 6531 6534 6664 6732 6776 6842 7056 7128 7344 7392 7464 7497 7623 7854 7938 8228 8316 8397 8568 8624 8708 8712 8976 9072 9163 9504 9639 9702 9801 9952 9996 10098 10164 10263 10472 10574 10584 11016 11088 11196 11424 11616 11781 11858 12342 12474 12852 12936 13062 13068 13328 13464 13552 13684 14112 14256 14399 14553 14688 14928 14994 15147 15239 15246 15708 15861 15876 16456 16632 16794 17136 17248 17416 17424 17787 17952 18144 18326 18513 19278 19404 19593 19602 19992 20196 20328 20526 20944 21148 21168 22032 22176 22392 22491 22869 23562 23716 23947 24684 24948 25191 25704 25872 26124 26136 26656 26928 27104 27368 27489 28512 28798 29106 29856 29988 30294 30478 30492 30789 31416 31722 31752 32912 33264 33588 34272 34832 34848 35343 35574 36652 37009 37026 37631 38556 38808 39186 39204 39984 40392 40656 41052 41888 42296 42336 43197 43659 44064 44784 44982 45717 45738 47124 47432 47583 47894 49368 49896 50382 51408 51744 52248 52272 53361 53856 54736 54978 55539 57596 58157 58212 58779 59976 60588 60956 60984 61578 62832 63444 63504 65824 66528 67176 67473 68607 69664 70686 71148 71841 73304 74018 74052 75262 77112 77616 78372 78408 79968 80784 81312 82104 82467 84592 86394 87318 89568 89964 91434 91476 92367 94248 94864 95166 95788 98736 99792 100764 100793 102816 104496 104544 106029 106722 109472 109956 111027 111078 112893 115192 116314 116424 117558 119952 121176 121912 121968 123156 125664 126888 127008 129591 134352 134946 137151 137214 141372 142296 142749 143682 146608 148036 148104 150524 154224 155232 156744 156816 160083 161568 164208 164934 166617 167629 169184 172788 174471 174636 176337 179928 182868 182952 184734 188496 189728 190332 191576 197472 199584 201528 201586 208992 212058 213444 215523 219912 222054 222156 225786 230384 232628 232848 235116 239904 242352 243824 243936 246312 247401 253776 259063 259182 263417 268704 269892 274302 274428 277101 282744 284592 285498 287364 293216 296072 296208 301048 302379 308448 313488 313632 320166 328416 329868 333081 333234 335258 338679 345576 348942 349272 352674 359856 365736 365904 369468 376992 380664 383152 388773 403056 403172 407099 411453 424116 426888 428247 431046 439824 444108 444312 451572 460768 465256 465696 470232 480249 484704 487648 492624 494802 502887 507552 518126 518364 523413 526834 539784 548604 548856 554202 565488 569184 570996 574728 592144 592416 602096 604758 626976 639727 640332 646569 659736 666162 666468 670516 677358 691152 697884 698544 705348 719712 731472 731808 738936 742203 761328 766304 777189 777546 790251 806112 806344 814198 822906 848232 853776 856494 862092 879648 888216 888624 903144 907137 930512 940464 960498 985248 989604 999243 1005774 1016037 1036252 1036728 1046826 1053668 1079568 1097208 1097712 1108404 1130976 1141992 1149456 1166319 1184288 1204192 1209516 1221297 1234359 1279454 1280664 1293138 1319472 1332324 1332936 1341032 1354716 1382304 1395768 1397088 1410696 1462944 1477872 1484406 1508661 1522656 1554378 1555092 1570239 1580502 1612688 1628396 1645812 1696464 1707552 1712988 1724184 1776432 1777248 1806288 1814274 1843919 1861024 1880928 1919181 1920996 1939707 1979208 1998486 2011548 2032074 2072504 2073456 2093652 2107336 2159136 2194416 2195424 2216808 2283984 2298912 2331567 2332638 2370753 2419032 2442594 2468718 2558908 2561328 2586276 2638944 2664648 2665872 2682064 2709432 2721411 2791536 2821392 2849693 2955744 2968812 2997729 3017322 3048111 3108756 3110184 3140478 3161004 3225376 3256792 3291624 3392928 3425976 3448368 3552864 3612576 3628548 3663891 3687838 3838362 3841992 3879414 3958416 3996972 4023096 4064148 4145008 4146912 4187304 4214672 4388832 4433616 4478089 4525983 4567968 4663134 4665276 4710717 4741506 4838064 4885188 4937436 5117816 5122656 5172552 5329296 5331744 5364128 5418864 5442822 5531757 5583072 5642784 5699386 5757543 5937624 5995458 6034644 6096222 6217512 6220368 6280956 6322008 6513584 6583248 6851952 6896736 6994701 7112259 7257096 7327782 7375676 7676724 7683984 7758828 7916832 7993944 8046192 8128296 8164233 8290016 8374608 8429344 8549079 8867232 8956178 9051966 9326268 9330552 9421434 9483012 9676128 9770376 9874872 10235632 10345104 10658592 10837728 10885644 10991673 11063514 11398772 11515086 11875248 11990916 12069288 12192444 12435024 12440736 12561912 12644016 13027168 13166496 13434267 13577949 13703904 13989402 14224518 14514192 14655564 14751352 15353448 15367968 15517656 15987888 16092384 16256592 16328466 16595271 16749216 17098158 17272629 17912356 18103932 18652536 18661104 18842868 18966024 19540752 19749744 20471264 20690208 20984103 21336777 21771288 21983346 22127028 22797544 23030172 23750496 23981832 24138576 24384888 24870048 25123824 25288032 25647237 26868534 27155898 27978804 28449036 29028384 29311128 29502704 30706896 31035312 31346623 31975776 32513184 32656932 32975019 33190542 34196316 34545258 35824712 36207864 37305072 37322208 37685736 37932048 39081504 39499488 40302801 41968206 42673554 43542576 43966692 44254056 45595088 46060344 47963664 48277152 48769776 49785813 50247648 51294474 51817887 53737068 54311796 55957608 56898072 58622256 59005408 61413792 62070624 62693246 65313864 65950038 66381084 68392632 69090516 71649424 72415728 74610144 75371472 75864096 76941711 80605602 83936412 85347108 87085152 87933384 88508112 91190176 92120688 94039869 95927328 97539552 99571626 102588948 103635774 107474136 108623592 111915216 113796144 117244512 120908403 125386492 130627728 131900076 132762168 136785264 138181032 143298848 144831456 149357439 150742944 153883422 161211204 167872824 170694216 175866768 177016224 184241376 188079738 199143252 205177896 207271548 214948272 217247184 223830432 227592288 230825133 241816806 250772984 261255456 263800152 265524336 273570528 276362064 282119607 298714878 307766844 322422408 335745648 341388432 351733536 362725209 376159476 398286504 410355792 414543096 429896544 434494368 461650266 483633612 501545968 527600304 531048672 552724128 564239214 597429756 615533688 644844816 671491296 682776864 725450418 752318952 796573008 820711584 829086192 846358821 923300532 967267224 1003091936 1055200608 1128478428 1194859512 1231067376 1289689632 1450900836 1504637904 1593146016 1658172384 1692717642 1846601064 1934534448 2256956856 2389719024 2462134752 2539076463 2901801672 3009275808 3385435284 3693202128 3869068896 4513913712 4779438048 5078152926 5803603344 6770870568 7386404256 9027827424 10156305852 11607206688 13541741136 20312611704 27083482272 40625223408 81250446816
• Sum of all divisors σ(n): 324548432208
• Sum of proper divisors (its aliquot sum) s(n): 243297985392
• 81250446816 is an abundant number, because the sum of its proper divisors (243297985392) is greater than itself. Its abundance is 162047538576

Bases of 81250446816

• Binary: 1001011101010111001110110110111100000₂
• Hexadecimal: 0x12EAE76DE0
• Base-36: 11BQF200

Squares and roots of 81250446816

• 81250446816 squared (81250446816²) is 6601635107799644537856
• 81250446816 cubed (81250446816³) is 536385802224913445306773826666496
• The square root of 81250446816 is 285044.6400408189
• The cube root of 81250446816 is 4331.2034661667

Scales and comparisons

• 81,250,446,816 seconds is equal to 2,583 years, 26 weeks, 4 days, 16 hours, 33 minutes, 36 seconds.
• To count from 1 to 81,250,446,816 would take you about five thousand, one hundred sixty-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 81250446816 cubic inches would be around 360.9 feet tall.

Recreational maths with 81250446816

• 81250446816 backwards is 61864405218
• The number of decimal digits it has is: 11
• The sum of 81250446816's digits is 45
• More coming soon!