12991818637728

Names of 12991818637728

• Cardinal: 12991818637728 can be written as Twelve trillion, nine hundred ninety-one billion, eight hundred eighteen million, six hundred thirty-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.2991818637728 × 10¹³

Factors of 12991818637728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2215

Divisors of 12991818637728

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 72 81 84 96 98 108 112 126 144 147 162 167 168 189 196 216 224 252 288 294 324 334 336 367 378 392 432 441 501 504 567 588 648 668 672 734 756 784 864 882 1002 1008 1101 1134 1169 1176 1296 1323 1336 1468 1503 1512 1568 1669 1764 2004 2016 2202 2268 2338 2352 2569 2592 2646 2672 2936 3006 3024 3303 3338 3507 3528 3969 4008 4404 4509 4536 4676 4704 5007 5138 5292 5344 5872 6012 6048 6606 6676 7014 7056 7707 7938 8016 8183 8808 9018 9072 9352 9909 10014 10276 10521 10584 11683 11744 12024 13212 13352 13527 14028 14112 15021 15414 15876 16032 16366 17616 17983 18036 18144 18704 19818 20028 20552 21042 21168 23121 23366 24048 24549 26424 26704 27054 28056 29727 30042 30828 31563 31752 32732 35049 35232 35966 36072 37408 39636 40056 41104 42084 42336 45063 46242 46732 48096 49098 52848 53408 53949 54108 56112 59454 60084 61289 61656 63126 63504 65464 69363 70098 71932 72144 73647 79272 80112 81781 82208 84168 90126 92484 93464 94689 98196 105147 105696 107898 108216 112224 118908 120168 122578 123312 126252 127008 130928 135189 138726 140196 143864 144288 147294 158544 160224 161847 163562 168336 180252 183867 184968 186928 189378 196392 208089 210294 215796 216432 220941 237816 240336 245156 245343 246624 252504 261856 270378 277452 278723 280392 287728 294588 315441 317088 323694 327124 336672 360504 367734 369936 373856 378756 392784 416178 420588 429023 431592 432864 441882 475632 480672 485541 490312 490686 505008 540756 551601 554904 557446 560784 575456 589176 612523 630882 647388 654248 662823 721008 735468 736029 739872 757512 785568 832356 836169 841176 858046 863184 883764 946323 951264 971082 980624 981372 1010016 1081512 1103202 1109808 1114892 1121568 1178352 1225046 1261764 1287069 1294776 1308496 1325646 1442016 1456623 1470936 1472058 1515024 1654803 1664712 1672338 1682352 1716092 1726368 1767528 1837569 1892646 1942164 1951061 1961248 1962744 2163024 2206404 2208087 2219616 2229784 2356704 2450092 2508507 2523528 2574138 2589552 2616992 2651292 2913246 2941872 2944116 3003161 3030048 3309606 3329424 3344676 3364704 3432184 3535056 3675138 3785292 3861207 3884328 3902122 3925488 4287661 4326048 4412808 4416174 4459568 4900184 4964409 5017014 5047056 5148276 5179104 5302584 5512707 5826492 5853183 5883744 5888232 6006322 6619212 6624261 6658848 6689352 6864368 7070112 7350276 7525521 7570584 7722414 7768656 7804244 7850976 8575322 8825616 8832348 8919136 9009483 9800368 9928818 10034028 10094112 10296552 10605168 11025414 11583621 11652984 11706366 11776464 12012644 12862983 13238424 13248522 13378704 13657427 13728736 14700552 15051042 15141168 15444828 15537312 15608488 16538121 17150644 17559549 17651232 17664696 18018966 19600736 19857636 20068056 20593104 21210336 22050828 22576563 23167242 23305968 23412732 23552928 24025288 25725966 26476848 26497044 26757408 27028449 27314854 29401104 30013627 30102084 30282336 30889656 31216976 33076242 34301288 34750863 35119098 35329392 36037932 38588949 39715272 40136112 40972281 41186208 44101656 45153126 46334484 46611936 46825464 48050576 49614363 51451932 52678647 52953696 52994088 54056898 54629708 58802208 60027254 60204168 61779312 62433952 66152484 68602576 69501726 70238196 70658784 72075864 77177898 79430544 80272224 81085347 81944562 88203312 90040881 90306252 92668968 93650928 96101152 99228726 102291341 102903864 105357294 105988176 108113796 109259416 115766847 120054508 120408336 122916843 123558624 132304968 137205152 139003452 140476392 144151728 154355796 158035941 158861088 162170694 163889124 176406624 180081762 180612504 185337936 187301856 198457452 204582682 205807728 210714588 211976352 216227592 218518832 231533694 240109016 240816672 243256041 245833686 264609936 270122643 278006904 280952784 288303456 306874023 308711592 316071882 324341388 327778248 347300541 360163524 361225008 368750529 370675872 396914904 409165364 411615456 421429176 432455184 437037664 463067388 480218032 486512082 491667372 529219872 540245286 556013808 561905568 613748046 617423184 632143764 648682776 655556496 694601082 716039387 720327048 722450016 737501058 793829808 810367929 818330728 842858352 864910368 920622069 926134776 960436064 973024164 983334744 1080490572 1106251587 1112027616 1227496092 1234846368 1264287528 1297365552 1311112992 1389202164 1432078774 1440654096 1475002116 1587659616 1620735858 1636661456 1685716704 1841244138 1852269552 1946048328 1966669488 2148118161 2160981144 2212503174 2431103787 2454992184 2528575056 2594731104 2761866207 2778404328 2864157548 2881308192 2950004232 3241471716 3273322912 3682488276 3704539104 3892096656 3933338976 4296236322 4321962288 4425006348 4862207574 4909984368 5012275709 5057150112 5523732414 5556808656 5728315096 5900008464 6444354483 6482943432 7364976552 7784193312 8285598621 8592472644 8643924576 8850012696 9724415148 9819968736 10024551418 11047464828 11113617312 11456630192 11800016928 12888708966 12965886864 14729953104 15036827127 16571197242 17184945288 17700025392 19333063449 19448830296 20049102836 22094929656 22913260384 25777417932 25931773728 29459906208 30073654254 33142394484 34369890576 35400050784 38666126898 38897660592 40098205672 44189859312 45110481381 51554835864 57999190347 60147308508 66284788968 68739781152 77332253796 77795321184 80196411344 88379718624 90220962762 103109671728 115998380694 120294617016 132569577936 135331444143 154664507592 160392822688 180441925524 206219343456 231996761388 240589234032 265139155872 270662888286 309329015184 360883851048 405994332429 463993522776 481178468064 541325776572 618658030368 721767702096 811988664858 927987045552 1082651553144 1443535404192 1623977329716 1855974091104 2165303106288 3247954659432 4330606212576 6495909318864 12991818637728
• Sum of all divisors σ(n): 44861557466880
• Sum of proper divisors (its aliquot sum) s(n): 31869738829152
• 12991818637728 is an abundant number, because the sum of its proper divisors (31869738829152) is greater than itself. Its abundance is 18877920191424

Bases of 12991818637728

• Binary: 10111101000011100100101111000010000110100000₂
• Hexadecimal: 0xBD0E4BC21A0
• Base-36: 4LSCXDM00

Squares and roots of 12991818637728

• 12991818637728 squared (12991818637728²) is 168787351515616625705001984
• 12991818637728 cubed (12991818637728³) is 2192854659233335466284666943366417252352
• The square root of 12991818637728 is 3604416.5460900881
• The cube root of 12991818637728 is 23508.4132469899

Scales and comparisons

• 12,991,818,637,728 seconds is equal to 413,099 years, 33 weeks, 4 days, 6 hours, 28 minutes, 48 seconds.
• To count from 1 to 12,991,818,637,728 would take you about one million, thirty-two thousand, seven hundred forty-nine 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 12991818637728 cubic inches would be around 1959 feet tall.

Recreational maths with 12991818637728

• 12991818637728 backwards is 82773681819921
• 12991818637728 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 12991818637728's digits is 72
• More coming soon!