18381841986816

Names of 18381841986816

• Cardinal: 18381841986816 can be written as Eighteen trillion, three hundred eighty-one billion, eight hundred forty-one million, nine hundred eighty-six thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.8381841986816 × 10¹³

Factors of 18381841986816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 745

Divisors of 18381841986816

• Number of divisors d(n): 972
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 31 32 33 36 42 44 48 49 56 62 63 64 66 72 77 84 88 93 96 98 99 112 124 126 128 132 144 147 154 168 176 186 192 196 198 217 224 231 248 252 256 264 279 288 294 308 336 341 352 372 384 392 396 434 441 448 462 496 504 528 539 558 576 588 616 651 672 682 691 693 704 744 768 784 792 868 882 896 924 992 1008 1023 1056 1078 1116 1152 1176 1232 1302 1344 1364 1382 1386 1408 1488 1519 1568 1584 1617 1736 1764 1792 1848 1953 1984 2016 2046 2073 2112 2156 2232 2304 2352 2387 2464 2604 2688 2728 2764 2772 2816 2976 3038 3069 3136 3168 3234 3472 3528 3696 3906 3968 4032 4092 4146 4224 4312 4464 4557 4704 4774 4837 4851 4928 5208 5376 5456 5528 5544 5952 6076 6138 6219 6272 6336 6468 6944 7056 7161 7392 7601 7812 7936 8064 8184 8292 8448 8624 8928 9114 9408 9548 9674 9702 9856 10416 10912 11056 11088 11904 12152 12276 12438 12544 12672 12936 13671 13888 14112 14322 14511 14784 15202 15624 16128 16368 16584 16709 17248 17856 18228 18816 19096 19348 19404 19712 20832 21421 21483 21824 22112 22176 22803 23808 24304 24552 24876 25344 25872 27342 27776 28224 28644 29022 29568 30404 31248 32736 33168 33418 33859 34496 35712 36456 37632 38192 38696 38808 41664 42842 42966 43533 43648 44224 44352 45606 48608 49104 49752 50127 51744 53207 54684 55552 56448 57288 58044 59136 60808 62496 64263 65472 66336 66836 67718 68409 68992 71424 72912 76384 77392 77616 83328 85684 85932 87066 87296 88448 88704 91212 97216 98208 99504 100254 101577 103488 106414 109368 112896 114576 116088 121616 124992 128526 130944 132672 133672 135436 136818 137984 145824 149947 150381 152768 154784 155232 159621 166656 171368 171864 174132 176896 177408 182424 192789 194432 196416 199008 200508 203154 206976 212828 218736 229152 232176 235631 243232 249984 257052 261888 265344 267344 270872 273636 291648 299894 300762 304731 305536 309568 310464 319242 342736 343728 348264 364848 372449 385578 388864 392832 398016 401016 406308 413952 425656 437472 449841 458304 464352 471262 477481 478863 486464 499968 514104 530688 534688 541744 547272 583296 599788 601524 609462 611072 619136 620928 638484 685472 687456 696528 706893 729696 744898 771156 785664 796032 802032 812616 851312 874944 899682 916608 928704 942524 954962 957726 972928 1028208 1049629 1069376 1083488 1094544 1117347 1166592 1199576 1203048 1218924 1238272 1241856 1276968 1349523 1370944 1374912 1393056 1413786 1432443 1459392 1489796 1542312 1592064 1604064 1625232 1649417 1702624 1749888 1799364 1833216 1857408 1885048 1909924 1915452 1945856 2056416 2099258 2120679 2138752 2166976 2189088 2234694 2399152 2406096 2437848 2553936 2699046 2741888 2749824 2786112 2827572 2864886 2918784 2979592 3084624 3148887 3208128 3250464 3298834 3342367 3352041 3405248 3499776 3598728 3714816 3770096 3819848 3830904 4112832 4198516 4241358 4277504 4297329 4333952 4378176 4469388 4798304 4812192 4875696 4948251 5107872 5252291 5398092 5483776 5499648 5572224 5655144 5729772 5837568 5959184 6169248 6297774 6416256 6500928 6597668 6684734 6704082 6810496 7197456 7540192 7639696 7661808 8225664 8397032 8482716 8594658 8667904 8756352 8938776 9446661 9596608 9624384 9751392 9896502 10027101 10215744 10504582 10796184 11144448 11310288 11459544 11545919 11918368 12338496 12595548 12832512 13001856 13195336 13369468 13408164 13620992 14394912 14801911 14844753 15080384 15279392 15323616 15756873 16451328 16794064 16965432 17189316 17512704 17877552 18893322 19193216 19248768 19502784 19793004 20054202 20431488 21009164 21592368 22620576 22919088 23091838 23396569 23836736 24676992 25191096 26003712 26390672 26738936 26816328 28789824 29603822 29689506 30081303 30160768 30558784 30647232 31513746 33588128 33930864 34378632 34637757 35755104 36766037 37786644 38386432 38497536 39005568 39586008 40108404 40862976 42018328 43184736 44405733 45241152 45838176 46183676 46793138 47270619 47673472 49353984 50382192 52781344 53477872 53632656 57579648 59207644 59379012 60162606 60321536 61117568 61294464 63027492 67176256 67861728 68757264 69275514 70189707 71510208 73532074 75573288 78011136 79172016 80216808 84036656 86369472 88811466 90482304 91676352 92367352 93586276 94541238 95346944 100764384 103613377 103913271 105562688 106955744 107265312 110298111 115159296 118415288 118758024 120325212 122235136 122588928 126054984 133217199 134352512 135723456 137514528 138551028 140379414 143020416 147064148 151146576 158344032 160433616 162821021 168073312 172738944 177622932 180964608 183352704 184734704 187172552 189082476 201528768 207226754 207826542 210569121 211125376 213911488 214530624 220596222 236830576 237516048 240650424 252109968 257362259 266434398 268705024 271446912 275029056 277102056 280758828 286040832 294128296 302293152 310840131 316688064 320867232 325642042 330894333 336146624 345477888 355245864 366705408 369469408 374345104 378164952 403057536 414453508 415653084 421138242 422250752 427822976 429061248 441192444 473661152 475032096 481300848 488463063 504219936 514724518 532868796 542893824 550058112 554204112 561517656 588256592 604586304 621680262 633376128 641734464 651284084 661788666 672293248 710491728 725293639 738938816 748690208 756329904 772086777 806115072 828907016 831306168 842276484 855645952 858122496 882384888 932520393 947322304 950064192 962601696 976926126 1008439872 1029449036 1065737592 1100116224 1108408224 1123035312 1139747147 1176513184 1209172608 1243360524 1266752256 1283468928 1302568168 1323577332 1344586496 1420983456 1450587278 1465389189 1477877632 1497380416 1512659808 1544173554 1657814032 1662612336 1684552968 1764769776 1865040786 1894644608 1900128384 1925203392 1953852252 2016879744 2058898072 2131475184 2175880917 2216816448 2246070624 2279494294 2316260331 2353026368 2418345216 2486721048 2566937856 2605136336 2647154664 2841966912 2901174556 2930778378 2955755264 2994760832 3025319616 3088347108 3315628064 3325224672 3369105936 3419241441 3529539552 3730081572 3789289216 3800256768 3850406784 3907704504 4033759488 4117796144 4262950368 4351761834 4433632896 4492141248 4558988588 4632520662 4706052736 4973442096 5210272672 5294309328 5683933824 5802349112 5861556756 5989521664 6050639232 6176694216 6527642751 6631256128 6650449344 6738211872 6838482882 7059079104 7460163144 7700813568 7815409008 7978230029 8235592288 8525900736 8703523668 8867265792 8984282496 9117977176 9265041324 9412105472 9946884192 10257724323 10420545344 10588618656 11367867648 11604698224 11723113512 12101278464 12353388432 13055285502 13262512256 13300898688 13476423744 13676965764 14118158208 14920326288 15630818016 15956460058 16471184576 17051801472 17407047336 17968564992 18235954352 18530082648 19893768384 20515448646 20841090688 21177237312 23209396448 23446227024 23934690087 24706776864 26110571004 26525024512 26601797376 26952847488 27353931528 28236316416 29840652576 31261636032 31912920116 32942369152 34103602944 34814094672 36471908704 37060165296 39787536768 41030897292 41682181376 42354474624 46418792896 46892454048 47869380174 49413553728 52221142008 53905694976 54707863056 59681305152 62523272064 63825840232 65884738304 69628189344 71804070261 72943817408 74120330592 79575073536 82061794584 84708949248 92837585792 93784908096 95738760348 98827107456 104442284016 109415726112 119362610304 125046544128 127651680464 139256378688 143608140522 145887634816 148240661184 164123589168 185675171584 187569816192 191477520696 197654214912 208884568032 218831452224 238725220608 255303360928 278512757376 287216281044 291775269632 296481322368 328247178336 375139632384 382955041392 417769136064 437662904448 510606721856 557025514752 574432562088 592962644736 656494356672 765910082784 835538272128 875325808896 1021213443712 1148865124176 1312988713344 1531820165568 1671076544256 2042426887424 2297730248352 2625977426688 3063640331136 4595460496704 6127280662272 9190920993408 18381841986816
• Sum of all divisors σ(n): 69527302895232
• Sum of proper divisors (its aliquot sum) s(n): 51145460908416
• 18381841986816 is an abundant number, because the sum of its proper divisors (51145460908416) is greater than itself. Its abundance is 32763618921600

Bases of 18381841986816

• Binary: 100001011011111011011001010010111010100000000₂
• Hexadecimal: 0x10B7DB297500
• Base-36: 6IKI243K0

Squares and roots of 18381841986816

• 18381841986816 squared (18381841986816²) is 337892114828271590317817856
• 18381841986816 cubed (18381841986816³) is 6211079463364375864414924967020641386496
• The square root of 18381841986816 is 4287405.0411427189
• The cube root of 18381841986816 is 26391.4352702021

Scales and comparisons

• 18,381,841,986,816 seconds is equal to 584,485 years, 37 weeks, 1 day, 18 hours, 33 minutes, 36 seconds.
• To count from 1 to 18,381,841,986,816 would take you about one million, four hundred sixty-one thousand, two hundred fourteen 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 18381841986816 cubic inches would be around 2199.3 feet tall.

Recreational maths with 18381841986816

• 18381841986816 backwards is 61868914818381
• 18381841986816 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18381841986816's digits is 72
• More coming soon!