21091815318672

Names of 21091815318672

• Cardinal: 21091815318672 can be written as Twenty-one trillion, ninety-one billion, eight hundred fifteen million, three hundred eighteen thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1091815318672 × 10¹³

Factors of 21091815318672

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3688

Divisors of 21091815318672

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 27 28 31 36 38 42 48 54 56 57 62 63 72 76 81 84 93 108 112 114 124 126 133 144 152 162 168 171 186 189 216 217 228 243 248 252 266 279 304 324 336 342 372 378 399 409 432 434 456 486 496 504 513 532 558 567 589 648 651 684 744 756 798 818 837 868 912 972 1008 1026 1064 1116 1134 1178 1197 1227 1296 1302 1368 1488 1512 1539 1596 1636 1674 1701 1736 1767 1944 1953 2052 2128 2232 2268 2356 2394 2454 2511 2604 2736 2863 3024 3078 3192 3217 3272 3348 3402 3472 3534 3591 3681 3888 3906 4104 4123 4464 4536 4617 4712 4788 4908 5022 5208 5301 5726 5859 6156 6384 6434 6544 6696 6804 7068 7182 7362 7533 7771 7812 8208 8246 8589 9072 9234 9424 9576 9651 9816 10044 10416 10602 10773 11043 11452 11718 12312 12369 12679 12868 13392 13608 14136 14364 14724 15066 15542 15624 15903 16492 17178 17577 18468 19152 19302 19632 20088 21204 21546 22086 22519 22904 23313 23436 24624 24738 25358 25736 25767 27216 28272 28728 28953 29448 30132 31084 31248 31806 32319 32984 33129 34356 35154 36936 37107 38037 38604 40176 42408 43092 44172 45038 45808 46626 46872 47709 49476 50716 51472 51534 52731 54397 57456 57906 58896 60264 61123 62168 63612 64638 65968 66258 67557 68712 69939 70308 73872 74214 76074 77208 77301 84816 86184 86859 88344 88753 90076 93252 93744 95418 98952 99387 99727 101432 103068 105462 108794 111321 114111 115812 120528 122246 124336 127224 129276 132516 135114 137424 139878 140616 143127 148428 152148 154416 154602 163191 172368 173718 176688 177506 180152 183369 186504 190836 197904 198774 199454 202671 202864 206136 209817 210924 217588 222642 228222 231624 231903 240901 244492 254448 258552 260577 265032 266259 270228 279756 281232 286254 296856 299181 304296 309204 326382 333963 342333 347436 355012 360304 366738 373008 381672 397548 398908 405342 412272 419634 421848 427861 435176 445284 456444 463248 463806 481802 488984 489573 517104 521154 530064 532518 540456 550107 559512 572508 593712 598362 608013 608592 618408 629451 652764 667926 684666 694872 695709 698089 710024 722703 733476 763344 781731 795096 797816 798777 810684 839268 843696 855722 870352 890568 897543 912888 927612 963604 977968 979146 1001889 1026999 1042308 1065036 1080912 1100214 1119024 1145016 1196724 1216026 1236816 1258902 1283583 1305528 1315753 1335852 1369332 1389744 1391418 1396178 1420048 1445406 1466952 1468719 1563462 1590192 1595632 1597554 1621368 1650321 1678536 1686307 1711444 1781136 1795086 1824039 1825776 1855224 1888353 1894813 1927208 1958292 2003778 2053998 2084616 2094267 2130072 2168109 2200428 2290032 2393448 2396331 2432052 2517804 2567166 2611056 2631506 2671704 2692629 2738664 2782836 2792356 2890812 2933904 2937438 3080997 3126924 3195108 3242736 3300642 3357072 3372614 3422888 3590172 3648078 3710448 3776706 3789626 3850749 3854416 3916584 3947259 4007556 4107996 4169232 4188534 4260144 4336218 4400856 4406157 4786896 4792662 4864104 4950963 5035608 5058921 5134332 5263012 5343408 5385258 5472117 5477328 5565672 5584712 5684439 5781624 5874876 6161994 6253848 6282801 6390216 6504327 6601284 6745228 6845776 7180344 7188993 7296156 7553412 7579252 7701498 7833168 7894518 8015112 8077887 8215992 8377068 8672436 8801712 8812314 9210271 9585324 9728208 9901926 10071216 10117842 10268664 10526024 10770516 10944234 11131344 11169424 11368878 11552247 11563248 11749752 11841777 12323988 12507696 12565602 12780432 13008654 13202568 13218471 13263691 13490456 14360688 14377986 14592312 14852889 15106824 15158504 15176763 15402996 15789036 16030224 16155774 16431984 16754136 17053317 17344872 17624628 18420542 18848403 19170648 19512981 19803852 20235684 20537328 21052048 21541032 21566979 21888468 22737756 23104494 23499504 23683554 24233661 24647976 24999307 25131204 26017308 26405136 26436942 26527382 26980912 27630813 28755972 29184624 29705778 30213648 30317008 30353526 30805992 31578072 32311548 33508272 34106634 34656741 34689744 35249256 35525331 36841084 37696806 38341296 39025962 39607704 39791073 40471368 40788343 43082064 43133958 43776936 45475512 45530289 46208988 47367108 48467322 49295952 49998614 50262408 51159951 52034616 52873884 53054764 55261626 56545209 57511944 58538943 59411556 60707052 61611984 63156144 64623096 68213268 69313482 70498512 71050662 73682168 74997921 75393612 78051924 79215408 79582146 80942736 81576686 82892439 86267916 87553872 90951024 91060578 92417976 94734216 96934644 99997228 100524816 102319902 103970223 104069232 105747768 106109528 106575993 110523252 113090418 115023888 117077886 118823112 119373219 121414104 122365029 129246192 136426536 136590867 138626964 142101324 147364336 149995842 150787224 153479853 156103848 159164292 163153372 165784878 169635627 172535832 174995149 182121156 184835952 189468432 193869288 199994456 204639804 207940446 211495536 212219056 213151986 221046504 224993763 226180836 234155772 237646224 238746438 242828208 244730058 248677317 272853072 273181734 277253928 284202648 285518401 299991684 301574448 306959706 312207696 318328584 319727979 326306744 331569756 339271254 345071664 349990298 358119657 364242312 367095087 387738576 399988912 409279608 409772601 415880892 426303972 442093008 449987526 452361672 460439559 468311544 477492876 489460116 497354634 524985447 546363468 554507856 568405296 571036802 599983368 613919412 636657168 639455958 652613488 663139512 674981289 678542508 699980596 716239314 728484624 734190174 746031951 774978517 818559216 819545202 831761784 852607944 856555203 899975052 904723344 920879118 936623088 954985752 978920232 994709268 1049970894 1074358971 1092726936 1101285261 1142073604 1199966736 1227838824 1278911916 1326279024 1349962578 1357085016 1399961192 1432478628 1468380348 1492063902 1549957034 1574956341 1639090404 1663523568 1705215888 1713110406 1799950104 1841758236 1909971504 1957840464 1989418536 2024943867 2099941788 2148717942 2185453872 2202570522 2238095853 2284147208 2324935551 2455677648 2557823832 2569665609 2699925156 2714170032 2799922384 2864957256 2936760696 2984127804 3099914068 3149912682 3223076913 3278180808 3303855783 3426220812 3599900208 3683516472 3978837072 4049887734 4199883576 4297435884 4405141044 4476191706 4568294416 4649871102 4724869023 5115647664 5139331218 5399850312 5424849619 5729914512 5873521392 5968255608 6074831601 6199828136 6299825364 6446153826 6556361616 6607711566 6852441624 6974806653 7367032944 7708996827 8099775468 8399767152 8594871768 8810282088 8952383412 9299742204 9449738046 9911567349 10278662436 10799700624 10849699238 11936511216 12149663202 12399656272 12599650728 12892307652 13215423132 13704883248 13949613306 14174607069 15417993654 16199550936 16274548857 17189743536 17620564176 17904766824 18599484408 18899476092 19823134698 20557324872 20924419959 21699398476 23126990481 24299326404 25199301456 25784615304 26430846264 27899226612 28349214138 30835987308 32399101872 32549097714 35809533648 37198968816 37798952184 39646269396 41114649744 41848839918 42523821207 43398796952 46253980962 48598652808 48823646571 51569230608 52861692528 55798453224 56698428276 61671974616 62773259877 65098195428 69380971443 75597904368 79292538792 83697679836 85047642414 86797593904 92507961924 97197305616 97647293142 111596906448 113396856552 123343949232 125546519754 130196390856 138761942886 146470939713 158585077584 167395359672 170095284828 185015923848 188319779631 195294586284 226793713104 251093039508 260392781712 277523885772 292941879426 334790719344 340190569656 370031847696 376639559262 390589172568 439412819139 502186079016 555047771544 585883758852 680381139312 753279118524 781178345136 878825638278 1004372158032 1110095543088 1171767517704 1318238457417 1506558237048 1757651276556 2343535035408 2636476914834 3013116474096 3515302553112 5272953829668 7030605106224 10545907659336 21091815318672
• Sum of all divisors σ(n): 76225965670400
• Sum of proper divisors (its aliquot sum) s(n): 55134150351728
• 21091815318672 is an abundant number, because the sum of its proper divisors (55134150351728) is greater than itself. Its abundance is 34042335033056

Bases of 21091815318672

• Binary: 100110010111011010010001010001110010010010000₂
• Hexadecimal: 0x132ED228E490
• Base-36: 7H5G29L00

Squares and roots of 21091815318672

• 21091815318672 squared (21091815318672²) is 444864673436966840911843584
• 21091815318672 cubed (21091815318672³) is 9383003533933833983152133309723978600448
• The square root of 21091815318672 is 4592582.6414635153
• The cube root of 21091815318672 is 27629.3914818925

Scales and comparisons

• 21,091,815,318,672 seconds is equal to 670,654 years, 25 weeks, 1 day, 20 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,091,815,318,672 would take you about one million, six hundred seventy-six thousand, six hundred thirty-six 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 21091815318672 cubic inches would be around 2302.4 feet tall.

Recreational maths with 21091815318672

• 21091815318672 backwards is 27681351819012
• 21091815318672 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21091815318672's digits is 54
• More coming soon!