1221643905768

Names of 1221643905768

• Cardinal: 1221643905768 can be written as One trillion, two hundred twenty-one billion, six hundred forty-three million, nine hundred five thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.221643905768 × 10¹²

Factors of 1221643905768

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 908

Divisors of 1221643905768

• Number of divisors d(n): 1024
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 18 19 22 24 26 27 31 33 36 38 39 44 52 54 57 62 66 72 76 78 81 88 93 99 104 108 114 117 124 132 143 152 156 162 171 186 198 209 216 228 234 243 247 248 264 279 286 297 312 324 341 342 351 372 396 403 418 429 456 468 486 494 513 558 572 589 594 627 648 682 684 702 729 741 744 792 806 829 836 837 858 891 936 972 988 1023 1026 1053 1116 1144 1178 1188 1209 1254 1287 1364 1368 1404 1458 1482 1539 1612 1658 1672 1674 1716 1767 1782 1881 1944 1976 2046 2052 2106 2187 2223 2232 2356 2376 2418 2487 2508 2511 2574 2673 2717 2728 2808 2916 2964 3069 3078 3159 3224 3316 3348 3432 3534 3564 3627 3762 3861 4092 4104 4212 4374 4433 4446 4617 4712 4836 4974 5016 5022 5148 5301 5346 5434 5643 5832 5928 6138 6156 6318 6479 6632 6669 6696 7068 7128 7254 7461 7524 7533 7657 7722 8019 8151 8184 8424 8748 8866 8892 9119 9207 9234 9477 9672 9948 10044 10296 10602 10692 10777 10868 10881 11286 11583 12276 12312 12636 12958 13299 13338 13851 14136 14508 14922 15048 15066 15314 15444 15751 15903 16038 16302 16929 17496 17732 17784 18238 18414 18468 18954 19437 19896 20007 20088 21204 21384 21554 21736 21762 22383 22572 22599 22971 23166 24057 24453 24552 25272 25699 25916 26598 26676 27357 27621 27702 28431 29016 29844 30132 30628 30888 31502 31806 32076 32331 32604 32643 33858 34749 35464 36476 36828 36936 37908 38874 39897 40014 41553 42408 43108 43524 44766 45144 45198 45942 46332 47253 47709 48114 48906 50787 51398 51832 53196 53352 54714 55242 55404 56862 58311 59688 60021 60264 61256 63004 63612 64152 64662 65208 65286 67149 67716 67797 68913 69498 72952 73359 73656 75816 77097 77748 79794 80028 82071 82863 83106 84227 86216 87048 89532 90396 91884 92664 94506 95418 96228 96993 97812 97929 101574 102796 104247 106392 109428 110484 110808 113724 116622 118547 119691 120042 126008 127224 129324 130572 134298 135432 135594 137826 138996 141759 143127 146718 152361 154194 155496 159588 160056 164142 165726 166212 168454 173261 174933 179064 180063 180792 183768 189012 190836 192456 193986 195624 195858 201447 203148 204763 205592 206739 208494 218856 220077 220968 227448 231291 233244 237094 239382 240084 246213 248589 252681 258648 261144 268596 271188 275652 277992 282689 283518 286254 290979 293436 293787 304722 308388 312741 319176 328284 331452 332424 334087 336908 346522 349866 355641 359073 360126 378024 381672 387972 391716 402894 406296 409526 413478 416988 425277 429381 440154 457083 462582 466488 474188 478764 480168 488281 492426 497178 505362 519783 524799 537192 540189 542376 551304 565378 567036 572508 581958 586872 587574 604341 609444 614289 616776 620217 625482 656568 660231 662904 668174 673816 693044 693873 699732 711282 718146 720252 738639 745767 758043 775944 783432 805788 819052 826956 833976 848067 850554 858762 872937 880308 881361 914166 925164 948376 957528 976562 984852 994356 1002261 1010724 1039566 1049598 1066923 1077219 1080378 1130756 1134072 1145016 1163916 1175148 1208682 1218888 1228578 1240434 1250964 1275831 1288143 1320462 1336348 1386088 1387746 1399464 1422564 1436292 1440504 1464843 1477278 1491534 1516086 1559349 1574397 1611576 1638104 1653912 1696134 1701108 1717524 1745874 1760616 1762722 1813023 1828332 1842867 1850328 1860651 1953124 1969704 1980693 1988712 2004522 2021448 2079132 2081619 2099196 2133846 2154438 2160756 2215917 2252393 2261512 2274129 2327832 2350296 2417364 2457156 2480868 2501928 2544201 2551662 2576286 2618811 2640924 2672696 2775492 2845128 2872584 2929686 2954556 2983068 3006783 3032172 3118698 3148794 3200769 3231657 3392268 3402216 3435048 3491748 3525444 3626046 3656664 3674957 3685734 3721302 3827493 3906248 3961386 4009044 4158264 4163238 4198392 4267692 4308876 4321512 4394529 4431834 4504786 4548258 4678047 4723191 4834728 4914312 4961736 5088402 5103324 5152572 5237622 5281848 5371091 5528601 5550984 5581953 5859372 5909112 5942079 5966136 6013566 6064344 6237396 6244857 6297588 6347653 6401538 6463314 6647751 6757179 6784536 6822387 6983496 7050888 7252092 7349914 7371468 7442604 7632603 7654986 7856433 7922772 8018088 8326476 8535384 8617752 8789058 8863668 9009572 9020349 9096516 9356094 9446382 9602307 9694971 10176804 10206648 10305144 10475244 10742182 11024871 11057202 11163906 11482479 11718744 11884158 12027132 12474792 12489714 12595176 12695306 12803076 12926628 13183587 13295502 13514358 13644774 14034141 14169573 14504184 14699828 14742936 14885208 15265206 15309972 15712866 15845544 16113273 16585803 16652952 16745859 17578116 17727336 18019144 18040698 18193032 18712188 18734571 18892764 19042959 19204614 19389942 19943253 20271537 20353608 20467161 20950488 21484364 22049742 22114404 22327812 22897809 22964958 23569299 23768316 24054264 24979428 25390612 25606152 25853256 26367174 26591004 27028716 27061047 27289548 28068282 28339146 28806921 29399656 30530412 30619944 31425732 32226546 33074613 33171606 33491718 34447437 35156232 36081396 37424376 37469142 37785528 38085918 38409228 38779884 39550761 39886506 40543074 40934322 42102423 42968728 44099484 44228808 44655624 45795618 45929916 47138598 47536632 48339819 49757409 49958856 50781224 52734348 53182008 54057432 54122094 54579096 56136564 56203713 56678292 57128877 57613842 60814611 61060824 61401483 62851464 64453092 66149226 66343212 66983436 68693427 68894874 69824183 72162792 74938284 76171836 76818456 77559768 79101522 79773012 81086148 81183141 81868644 84204846 86420763 88198968 91591236 91859832 94277196 96679638 99223839 99514818 105468696 108244188 112273128 112407426 113356584 114257754 115227684 118652283 121629222 122802966 126307269 128906184 132298452 132686424 133966872 137386854 137789748 139648366 145019457 149272227 149876568 152343672 158203044 159546024 162172296 162366282 163737288 168409692 171386631 172841526 182443833 183182472 184204449 188554392 193359276 198447678 199029636 206080281 209472549 216488376 224814852 228515508 230455368 237304566 243258444 243549423 245605932 252614538 259262289 264596904 274773708 275579496 279296732 290038914 297671517 298544454 316406088 324732564 336819384 342773262 345683052 355956849 364887666 368408898 378921807 386718552 396895356 398059272 412160562 418945098 435058371 447816681 449629704 457031016 474609132 486516888 487098846 491211864 505229076 514159893 518524578 547331499 549547416 558593464 580077828 595343034 597088908 618240843 628417647 649465128 685546524 691366104 711913698 729775332 730648269 736817796 757843614 793790712 824321124 837890196 870116742 893014551 895633362 949218264 974197692 1010458152 1028319786 1037049156 1067870547 1094662998 1160155656 1190686068 1194177816 1236481686 1256835294 1305175113 1371093048 1423827396 1459550664 1461296538 1473635592 1515687228 1542479679 1641994497 1648642248 1675780392 1740233484 1786029102 1791266724 1885252941 1948395384 2056639572 2074098312 2135741094 2189325996 2381372136 2472963372 2513670588 2610350226 2679043653 2847654792 2922593076 3031374456 3084959358 3283988994 3480466968 3572058204 3582533448 3770505882 3915525339 4113279144 4271482188 4378651992 4627439037 4925983491 4945926744 5027341176 5220700452 5358087306 5655758823 5845186152 6169918716 6567977988 7144116408 7541011764 7831050678 8037130959 8542964376 9254878074 9851966982 10441400904 10716174612 11311517646 11746576017 12339837432 13135955976 13882317111 15082023528 15662101356 16074261918 16967276469 18509756148 19703933964 21432349224 22623035292 23493152034 27764634222 31324202712 32148523836 33934552938 37019512296 39407867928 45246070584 46986304068 50901829407 55529268444 64297047672 67869105876 93972608136 101803658814 111058536888 135738211752 152705488221 203607317628 305410976442 407214635256 610821952884 1221643905768
• Sum of all divisors σ(n): 4390686720000
• Sum of proper divisors (its aliquot sum) s(n): 3169042814232
• 1221643905768 is an abundant number, because the sum of its proper divisors (3169042814232) is greater than itself. Its abundance is 1947398908464

Bases of 1221643905768

• Binary: 10001110001101111101001101010101011101000₂
• Hexadecimal: 0x11C6FA6AAE8
• Base-36: FL7R8MI0

Squares and roots of 1221643905768

• 1221643905768 squared (1221643905768²) is 1492413832500094063669824
• 1221643905768 cubed (1221643905768³) is 1823198263357604648168994662921144832
• The square root of 1221643905768 is 1105280.0123805731
• The cube root of 1221643905768 is 10690.0944976877

Scales and comparisons

• 1,221,643,905,768 seconds is equal to 38,844 years, 25 weeks, 6 days, 1 hour, 22 minutes, 48 seconds.
• To count from 1 to 1,221,643,905,768 would take you about ninety-seven thousand, one hundred eleven 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 1221643905768 cubic inches would be around 890.8 feet tall.

Recreational maths with 1221643905768

• 1221643905768 backwards is 8675093461221
• 1221643905768 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1221643905768's digits is 54
• More coming soon!