81798077088

Names of 81798077088

• Cardinal: 81798077088 can be written as Eighty-one billion, seven hundred ninety-eight million, seventy-seven thousand and eighty-eight.

Scientific notation

• Scientific notation: 8.1798077088 × 10¹⁰

Factors of 81798077088

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 832

Divisors of 81798077088

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 19 21 24 26 28 31 32 36 38 39 42 48 49 52 56 57 62 63 72 76 78 84 91 93 96 98 104 112 114 117 124 126 133 144 147 152 156 168 171 182 186 196 208 217 224 228 234 247 248 252 266 273 279 288 294 304 312 336 342 364 372 392 399 403 416 434 441 456 468 494 496 504 532 546 558 588 589 608 624 637 651 672 684 728 741 744 757 784 798 806 819 868 882 912 931 936 988 992 1008 1064 1092 1116 1176 1178 1197 1209 1248 1274 1302 1368 1456 1482 1488 1514 1519 1568 1596 1612 1638 1729 1736 1764 1767 1824 1862 1872 1911 1953 1976 2016 2128 2184 2223 2232 2271 2352 2356 2394 2418 2548 2604 2736 2793 2821 2912 2964 2976 3028 3038 3192 3224 3276 3458 3472 3528 3534 3627 3724 3744 3822 3906 3952 4123 4256 4368 4446 4464 4542 4557 4704 4712 4788 4836 5096 5187 5208 5299 5301 5472 5586 5642 5733 5928 6056 6076 6384 6448 6552 6813 6916 6944 7056 7068 7254 7448 7644 7657 7812 7904 8246 8379 8463 8736 8892 8928 9084 9114 9424 9576 9672 9841 10192 10374 10416 10598 10602 11172 11284 11466 11856 12103 12112 12152 12369 12768 12896 13104 13626 13671 13832 14112 14136 14383 14508 14896 15288 15314 15561 15624 15897 16492 16758 16926 17784 18168 18228 18848 19152 19344 19682 19747 20384 20748 20832 21196 21204 22344 22568 22932 22971 23467 23712 24206 24224 24304 24738 25389 26208 27252 27342 27664 28272 28766 28861 29016 29523 29792 30576 30628 31122 31248 31794 32984 33516 33852 35568 36309 36336 36456 37093 37107 38304 38688 39364 39494 41496 42392 42408 43149 44688 45136 45864 45942 46934 47691 48412 48608 49476 50778 53599 54504 54684 55328 56544 57532 57722 58032 59046 59241 61152 61256 62244 62496 63588 65968 67032 67704 68887 68913 70401 71136 72618 72672 72912 74186 74214 78728 78988 82992 84784 84816 86298 86583 88569 89376 90272 91728 91884 93868 95382 96824 98952 100681 101556 107198 108927 109008 109368 111279 115064 115444 116064 118092 118482 122512 124488 127176 129447 131936 134064 135408 137774 137826 140802 145236 145824 148372 148428 157456 157976 160797 164269 165984 169568 169632 172596 173166 177138 177723 183456 183768 186979 187736 190764 193648 197904 201362 203112 206661 211203 214396 217854 218016 218736 222558 230128 230888 236184 236964 245024 248976 254352 258894 259749 268128 270816 275548 275652 281604 290472 296744 296856 302043 305071 314912 315952 321594 328538 333837 345192 346332 354276 355446 367536 373958 375193 375472 381528 387296 395808 402724 406224 413322 422406 428792 435708 437472 445116 445873 460256 461776 472368 473928 482209 482391 492807 497952 508704 517788 519498 551096 551304 560937 563208 580944 593488 593712 604086 610142 619983 631904 643188 657076 667674 690384 692664 704767 708552 710892 735072 747916 750386 750944 763056 805448 812448 826644 844812 857584 871416 890232 891746 906129 915213 923552 944736 947856 964418 964782 985614 1035576 1038996 1102192 1102608 1121874 1125579 1126416 1149883 1161888 1186976 1187424 1208172 1220284 1239966 1286376 1308853 1314152 1335348 1337619 1380768 1385328 1409534 1417104 1421784 1446627 1478421 1495832 1500772 1526112 1610896 1653288 1682811 1689624 1715168 1742832 1780464 1783492 1812258 1830426 1895712 1928836 1929564 1971228 2071152 2077992 2114301 2135497 2204384 2205216 2243748 2251158 2252832 2299766 2416344 2440568 2479932 2572752 2617706 2628304 2670696 2675238 2745639 2770656 2819068 2834208 2843568 2893254 2956842 2991664 3001544 3121111 3221792 3306576 3365622 3376737 3379248 3449649 3485664 3560928 3566984 3624516 3660852 3857672 3859128 3926559 3942456 4012857 4142304 4155984 4228602 4270994 4339881 4487496 4502316 4599532 4832688 4881136 4959864 5145504 5235412 5256608 5341392 5350476 5491278 5638136 5687136 5786508 5796349 5913684 5983328 6003088 6242222 6342903 6406491 6613152 6731244 6753474 6758496 6899298 7133968 7249032 7321704 7715344 7718256 7853118 7884912 8025714 8311968 8457204 8541988 8679762 8974992 9004632 9161971 9199064 9363333 9665376 9762272 9919728 10348947 10470824 10682784 10700952 10982556 11276272 11573016 11592698 11779677 11827368 12006176 12484444 12685806 12812982 13462488 13506948 13798596 14267936 14498064 14643408 14948479 15430688 15436512 15706236 15769824 16051428 16914408 17083976 17359524 17389047 17949984 18009264 18323942 18398128 18726666 19219473 19839456 20697894 20941648 21401904 21847777 21965112 22552544 23146032 23185396 23559354 23654736 24968888 25371612 25625964 26924976 27013896 27485913 27597192 28089999 28996128 29286816 29896958 31412472 32102856 33828816 34167952 34719048 34778094 36018528 36647884 36796256 37453332 38438946 40574443 41395788 41883296 42803808 43695554 43930224 44845437 46292064 46370792 47118708 47309472 49937776 50743224 51251928 52167141 53849952 54027792 54971826 55194384 56179998 59793916 62824944 64205712 65543331 67657632 68335904 69438096 69556188 73295768 74906664 76877892 81148886 82457739 82791576 87391108 87860448 89690874 92741584 94237416 99875552 101486448 102503856 104334282 108055584 109943652 110388768 112359996 119587832 121723329 125649888 128411424 131086662 134536311 138876192 139112376 146591536 149813328 153755784 162297772 164915478 165583152 174782216 179381748 185483168 188474832 196629993 202972896 205007712 208668564 219887304 224719992 239175664 243446658 262173324 269072622 278224752 284021101 293183072 299626656 307511568 324595544 329830956 331166304 349564432 358763496 365169987 376949664 393259986 417337128 439774608 449439984 478351328 486893316 524346648 538145244 556449504 568042202 615023136 649191088 659661912 699128864 717526992 730339974 786519972 834674256 852063303 879549216 898879968 973786632 1048693296 1076290488 1136084404 1298382176 1319323824 1435053984 1460679948 1573039944 1669348512 1704126606 1947573264 2097386592 2152580976 2272168808 2556189909 2638647648 2921359896 3146079888 3408253212 3895146528 4305161952 4544337616 5112379818 5842719792 6292159776 6816506424 9088675232 10224759636 11685439584 13633012848 20449519272 27266025696 40899038544 81798077088
• Sum of all divisors σ(n): 317055997440
• Sum of proper divisors (its aliquot sum) s(n): 235257920352
• 81798077088 is an abundant number, because the sum of its proper divisors (235257920352) is greater than itself. Its abundance is 153459843264

Bases of 81798077088

• Binary: 1001100001011100010111001101010100000₂
• Hexadecimal: 0x130B8B9AA0
• Base-36: 11KSGO80

Squares and roots of 81798077088

• 81798077088 squared (81798077088²) is 6690925415294390559744
• 81798077088 cubed (81798077088³) is 547304832910308973219919181545472
• The square root of 81798077088 is 286003.6312496749
• The cube root of 81798077088 is 4340.9124963039

Scales and comparisons

• 81,798,077,088 seconds is equal to 2,600 years, 48 weeks, 1 day, 4 minutes, 48 seconds.
• To count from 1 to 81,798,077,088 would take you about five thousand, two hundred one 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 81798077088 cubic inches would be around 361.7 feet tall.

Recreational maths with 81798077088

• 81798077088 backwards is 88077089718
• 81798077088 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81798077088's digits is 63
• More coming soon!