7978649106420

Names of 7978649106420

• Cardinal: 7978649106420 can be written as Seven trillion, nine hundred seventy-eight billion, six hundred forty-nine million, one hundred six thousand, four hundred twenty.

Scientific notation

• Scientific notation: 7.97864910642 × 10¹²

Factors of 7978649106420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 316

Divisors of 7978649106420

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 149 157 162 180 243 270 298 314 324 405 447 471 486 540 596 628 729 745 785 810 894 942 972 1215 1341 1413 1458 1490 1570 1620 1788 1884 2235 2355 2430 2682 2826 2916 2980 3140 3645 4023 4239 4470 4710 4860 5364 5652 6705 7065 7290 8046 8478 8940 9420 12069 12717 13410 14130 14580 16092 16956 20115 21195 22201 23393 24138 24649 25434 26820 28260 36207 38151 40230 42390 44402 46786 48276 49298 50868 60345 63585 66603 70179 72414 73947 76302 80460 84780 88804 93572 98596 108621 111005 114453 116965 120690 123245 127170 133206 140358 144828 147894 152604 181035 190755 199809 210537 217242 221841 222010 228906 233930 241380 246490 254340 266412 280716 295788 333015 350895 362070 369735 381510 399618 421074 434484 443682 444020 457812 467860 492980 543105 572265 599427 631611 665523 666030 701790 724140 739470 763020 799236 842148 887364 999045 1052685 1086210 1109205 1144530 1198854 1263222 1331046 1332060 1403580 1478940 1798281 1894833 1996569 1998090 2105370 2172420 2218410 2289060 2397708 2526444 2662092 2997135 3158055 3327615 3485557 3596562 3672701 3789666 3993138 3996180 4210740 4436820 5394843 5684499 5989707 5994270 6316110 6655230 6971114 7193124 7345402 7579332 7986276 8991405 9474165 9982845 10456671 10789686 11018103 11368998 11979414 11988540 12632220 13310460 13942228 14690804 16184529 17053497 17427785 17969121 17982810 18363505 18948330 19965690 20913342 21579372 22036206 22737996 23958828 26974215 28422495 29948535 31370013 32369058 33054309 34106994 34855570 35938242 35965620 36727010 37896660 39931380 41826684 44072412 52283355 53948430 55090515 56844990 59897070 62740026 64738116 66108618 68213988 69711140 71876484 73454020 80922645 85267485 89845605 94110039 99162927 104566710 107896860 110181030 113689980 119794140 125480052 132217236 156850065 161845290 165271545 170534970 179691210 188220078 198325854 209133420 220362060 282330117 297488781 313700130 323690580 330543090 341069940 359382420 376440156 396651708 470550195 495814635 547232449 564660234 594977562 627400260 661086180 846990351 892466343 941100390 991629270 1094464898 1129320468 1189955124 1411650585 1487443905 1641697347 1693980702 1784932686 1882200780 1983258540 2188929796 2540971053 2677399029 2736162245 2823301170 2974887810 3283394694 3387961404 3569865372 4234951755 4462331715 4925092041 5081942106 5354798058 5472324490 5646602340 5949775620 6566789388 8208486735 8469903510 8924663430 9850184082 10163884212 10709596116 10944648980 12704855265 13386995145 14775276123 16416973470 16939807020 17849326860 19700368164 24625460205 25409710530 26773990290 29550552246 32833946940 44325828369 49250920410 50819421060 53547980580 59101104492 73876380615 88651656738 98501840820 132977485107 147752761230 177303313476 221629141845 265954970214 295505522460 398932455321 443258283690 531909940428 664887425535 797864910642 886516567380 1329774851070 1595729821284 1994662276605 2659549702140 3989324553210 7978649106420
• Sum of all divisors σ(n): 25453098463842
• Sum of proper divisors (its aliquot sum) s(n): 17474449357422
• 7978649106420 is an abundant number, because the sum of its proper divisors (17474449357422) is greater than itself. Its abundance is 9495800251002

Bases of 7978649106420

• Binary: 1110100000110101100100010111011011111110100₂
• Hexadecimal: 0x741AC8BB7F4
• Base-36: 2TTC9OB90

Squares and roots of 7978649106420

• 7978649106420 squared (7978649106420²) is 63658841563376664485216400
• 7978649106420 cubed (7978649106420³) is 507911559355367579892851979160329288000
• The square root of 7978649106420 is 2824650.2626732393
• The cube root of 7978649106420 is 19982.1917366775

Scales and comparisons

• 7,978,649,106,420 seconds is equal to 253,696 years, 18 weeks, 5 days, 18 hours, 27 minutes.
• To count from 1 to 7,978,649,106,420 would take you about six hundred thirty-four thousand, two hundred forty 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 7978649106420 cubic inches would be around 1665.2 feet tall.

Recreational maths with 7978649106420

• 7978649106420 backwards is 0246019468797
• The number of decimal digits it has is: 13
• The sum of 7978649106420's digits is 63
• More coming soon!