121491487541337872

Names of 121491487541337872

• Cardinal: 121491487541337872 can be written as One hundred twenty-one quadrillion, four hundred ninety-one trillion, four hundred eighty-seven billion, five hundred forty-one million, three hundred thirty-seven thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.21491487541337872 × 10¹⁷

Factors of 121491487541337872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 45659

Divisors of 121491487541337872

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 7 8 14 16 28 37 43 47 49 56 74 86 94 98 112 148 172 188 196 259 296 301 329 344 376 392 518 592 602 658 688 752 784 1036 1204 1316 1591 1739 1813 2021 2072 2107 2303 2408 2632 3182 3478 3626 4042 4144 4214 4606 4816 5264 6364 6956 7252 8084 8428 9212 11137 12173 12728 13912 14147 14504 16168 16856 18424 22274 24346 25456 27824 28294 29008 32336 33712 36848 44548 45523 48692 56588 74777 77959 85211 89096 91046 97384 99029 113176 149554 155918 170422 178192 182092 194768 198058 226352 299108 311836 318661 340844 364184 396116 523439 598216 623672 637322 681688 728368 792232 1046878 1196432 1247344 1274644 1363376 1584464 1684351 1957489 2093756 2139581 2230627 2549288 3368702 3664073 3914978 4187512 4279162 4461254 5098576 6737404 7328146 7829956 8375024 8558324 8922508 11790457 13474808 13702423 14656292 14977067 15659912 17116648 17845016 23580914 26949616 27404846 29312584 29954134 31319824 34233296 35690032 47161828 54809692 58625168 59908268 72427093 79164497 82533199 92001983 94323656 95916961 104839469 109619384 119816536 144854186 158328994 165066398 184003966 188647312 191833922 209678938 219238768 239633072 289708372 316657988 330132796 368007932 383667844 419357876 506989651 554151479 579416744 633315976 644013881 660265592 736015864 767335688 838715752 1013979302 1108302958 1158833488 1266631952 1288027762 1320531184 1472031728 1534671376 1677431504 2027958604 2072343529 2216605916 2576055524 3404073371 3548927557 3879060353 4055917208 4144687058 4433211832 4508097167 5152111048 6808146742 7097855114 7758120706 8111834416 8289374116 8866423664 9016194334 10304222096 13616293484 14195710228 14506404703 15516241412 16578748232 18032388668 23828513597 27232586968 28391420456 29012809406 31032482824 33157496464 36064777336 47657027194 54465173936 56782840912 58025618812 62064965648 72129554672 76676710573 89110771747 95314054388 97400145863 101544832921 116051237624 153353421146 166799595179 178221543494 190628108776 194800291726 203089665842 232102475248 306706842292 333599190358 356443086988 381256217552 389600583452 406179331684 536736974011 613413684584 623775402229 667198380716 681801021041 712886173976 779201166904 812358663368 1073473948022 1226827369168 1247550804458 1334396761432 1363602042082 1425772347952 1558402333808 1624717326736 2146947896044 2495101608916 2668793522864 2727204084164 3297098554639 3603805396931 3757158818077 4188206272109 4293895792088 4366427815603 4772607147287 4990203217832 5454408168328 6594197109278 7207610793862 7514317636154 8376412544218 8587791584176 8732855631206 9545214294574 9980406435664 10908816336656 13188394218556 14415221587724 15028635272308 16752825088436 17465711262412 19090428589148 23079689882473 25226637778517 26376788437112 28830443175448 29317443904763 30057270544616 33505650176872 34931422524824 38180857178296 46159379764946 50453275557034 52753576874224 57660886350896 58634887809526 60114541089232 67011300353744 69862845049648 76361714356592 92318759529892 100906551114068 117269775619052 154963632068033 161557829177311 176586464449619 184637519059784 201813102228136 205222107333341 234539551238104 309927264136066 323115658354622 353172928899238 369275038119568 403626204456272 410444214666682 469079102476208 619854528272132 646231316709244 706345857798476 820888429333364 1084745424476231 1239709056544264 1292462633418488 1412691715596952 1641776858666728 2169490848952462 2479418113088528 2584925266836976 2825383431193904 3283553717333456 4338981697904924 7593217971333617 8677963395809848 15186435942667234 17355926791619696 30372871885334468 60745743770668936 121491487541337872
• Sum of all divisors σ(n): 293890365864982656
• Sum of proper divisors (its aliquot sum) s(n): 172398878323644784
• 121491487541337872 is an abundant number, because the sum of its proper divisors (172398878323644784) is greater than itself. Its abundance is 50907390782306912

Bases of 121491487541337872

• Binary: 110101111100111111101110100111110001000101001111100010000₂
• Hexadecimal: 0x1AF9FDD3E229F10
• Base-36: X894YVKUZGW

Squares and roots of 121491487541337872

• 121491487541337872 squared (121491487541337872²) is 14760181545007055370438019661488384
• 121491487541337872 cubed (121491487541337872³) is 1793236412283109850353642429228549676831290147278848
• The square root of 121491487541337872 is 348556290.3482561913
• The cube root of 121491487541337872 is 495277.5201837189

Scales and comparisons

• 121,491,487,541,337,872 seconds is equal to 3,863,053,505 years, 50 weeks, 2 days, 21 hours, 24 minutes, 32 seconds.
• To count from 1 to 121,491,487,541,337,872 would take you about eleven billion, five hundred eighty-nine million, one hundred sixty thousand, five hundred seventeen 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 121491487541337872 cubic inches would be around 41273.1 feet tall.

Recreational maths with 121491487541337872

• 121491487541337872 backwards is 278733145784194121
• The number of decimal digits it has is: 18
• The sum of 121491487541337872's digits is 77
• More coming soon!