81980446464

Names of 81980446464

• Cardinal: 81980446464 can be written as Eighty-one billion, nine hundred eighty million, four hundred forty-six thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 8.1980446464 × 10¹⁰

Factors of 81980446464

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 392

Divisors of 81980446464

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 64 72 84 96 98 108 112 126 128 144 147 151 168 189 192 196 216 224 229 252 256 288 294 302 336 343 378 384 392 432 441 448 453 458 504 576 588 604 672 686 687 756 768 784 864 882 896 906 916 1008 1029 1057 1152 1176 1208 1323 1344 1359 1372 1374 1512 1568 1603 1728 1764 1792 1812 1832 2016 2058 2061 2114 2304 2352 2416 2646 2688 2718 2744 2748 3024 3087 3136 3171 3206 3456 3528 3624 3664 4032 4077 4116 4122 4228 4704 4809 4832 5292 5376 5436 5488 5496 6048 6174 6183 6272 6342 6412 6912 7056 7248 7328 7399 8064 8154 8232 8244 8456 9261 9408 9513 9618 9664 10584 10872 10976 10992 11221 12096 12348 12366 12544 12684 12824 14112 14427 14496 14656 14798 16128 16308 16464 16488 16912 18522 18816 19026 19236 19328 21168 21744 21952 21984 22197 22442 24192 24696 24732 25368 25648 28224 28539 28854 28992 29312 29596 32616 32928 32976 33663 33824 34579 37044 37632 38052 38472 38656 42336 43281 43488 43904 43968 44394 44884 48384 49392 49464 50736 51296 51793 56448 57078 57708 57984 58624 59192 65232 65856 65952 66591 67326 67648 69158 74088 76104 76944 78547 84672 86562 86976 87808 87936 88788 89768 98784 98928 100989 101472 102592 103586 103737 112896 114156 115416 115968 118384 130464 131712 131904 133182 134652 135296 138316 148176 152208 153888 155379 157094 169344 173124 173952 175872 177576 179536 197568 197856 199773 201978 202944 205184 207172 207474 228312 230832 235641 236768 242053 260928 263424 263808 266364 269304 270592 276632 296352 302967 304416 307776 310758 311211 314188 338688 346248 347904 355152 359072 395136 395712 399546 403956 405888 410368 414344 414948 456624 461664 466137 471282 473536 484106 521856 527616 532728 538608 553264 592704 605934 608832 615552 621516 622422 628376 692496 706923 710304 718144 726159 790272 791424 799092 807912 811776 828688 829896 913248 923328 932274 933633 942564 947072 968212 1043712 1065456 1077216 1106528 1185408 1211868 1217664 1231104 1243032 1244844 1256752 1384992 1398411 1413846 1420608 1436288 1452318 1582848 1598184 1615824 1657376 1659792 1694371 1826496 1846656 1864548 1867266 1885128 1894144 1936424 2120769 2130912 2154432 2178477 2213056 2370816 2423736 2435328 2486064 2489688 2513504 2769984 2796822 2827692 2841216 2872576 2904636 3196368 3231648 3314752 3319584 3388742 3652992 3693312 3729096 3734532 3770256 3872848 4241538 4261824 4308864 4356954 4426112 4847472 4972128 4979376 5027008 5083113 5539968 5593644 5655384 5682432 5809272 6392736 6463296 6535431 6629504 6639168 6777484 7305984 7458192 7469064 7540512 7745696 8483076 8523648 8617728 8713908 8852224 9694944 9944256 9958752 10054016 10166226 11079936 11187288 11310768 11618544 11860597 12785472 12926592 13070862 13259008 13278336 13554968 14916384 14938128 15081024 15249339 15491392 16966152 17047296 17427816 19389888 19888512 19917504 20108032 20332452 22374576 22621536 23237088 23721194 25570944 25853184 26141724 26556672 27109936 29832768 29876256 30162048 30498678 30982784 33932304 34855632 35581791 38779776 39777024 39835008 40664904 44749152 45243072 45748017 46474176 47442388 51141888 52283448 54219872 59665536 59752512 60324096 60997356 61965568 67864608 69711264 71163582 77559552 79670016 81329808 89498304 90486144 91496034 92948352 94884776 104566896 106745373 108439744 119331072 119505024 121994712 135729216 139422528 142327164 162659616 178996608 180972288 182992068 185896704 189769552 209133792 213490746 216879488 239010048 243989424 271458432 278845056 284654328 320236119 325319232 357993216 365984136 379539104 418267584 426981492 433758976 487978848 542916864 557690112 569308656 640472238 650638464 731968272 759078208 836535168 853962984 975957696 1138617312 1280944476 1301276928 1463936544 1518156416 1673070336 1707925968 1951915392 2277234624 2561888952 2927873088 3036312832 3415851936 3903830784 4554469248 5123777904 5855746176 6831703872 9108938496 10247555808 11711492352 13663407744 20495111616 27326815488 40990223232 81980446464
• Sum of all divisors σ(n): 285832960000
• Sum of proper divisors (its aliquot sum) s(n): 203852513536
• 81980446464 is an abundant number, because the sum of its proper divisors (203852513536) is greater than itself. Its abundance is 121872067072

Bases of 81980446464

• Binary: 1001100010110011010100101011100000000₂
• Hexadecimal: 0x13166A5700
• Base-36: 11NT1HC0

Squares and roots of 81980446464

• 81980446464 squared (81980446464²) is 6720793602436770103296
• 81980446464 cubed (81980446464³) is 550973660120161331398333477945344
• The square root of 81980446464 is 286322.2772751013
• The cube root of 81980446464 is 4344.1361332145

Scales and comparisons

• 81,980,446,464 seconds is equal to 2,606 years, 37 weeks, 4 days, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 81,980,446,464 would take you about five thousand, two hundred thirteen 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 81980446464 cubic inches would be around 362 feet tall.

Recreational maths with 81980446464

• 81980446464 backwards is 46464408918
• 81980446464 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81980446464's digits is 54
• More coming soon!