81196473919680

Names of 81196473919680

• Cardinal: 81196473919680 can be written as Eighty-one trillion, one hundred ninety-six billion, four hundred seventy-three million, nine hundred nineteen thousand, six hundred eighty.

Scientific notation

• Scientific notation: 8.119647391968 × 10¹³

Factors of 81196473919680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 27398676

Divisors of 81196473919680

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 49 54 56 60 63 64 70 72 80 84 90 96 98 105 108 112 120 126 135 140 144 147 160 168 180 189 192 196 210 216 224 240 245 252 270 280 288 294 315 320 336 343 360 378 392 420 432 441 448 480 490 504 540 560 576 588 630 672 686 720 735 756 784 840 864 882 945 960 980 1008 1029 1080 1120 1176 1260 1323 1344 1372 1440 1470 1512 1568 1680 1715 1728 1764 1890 1960 2016 2058 2160 2205 2240 2352 2520 2646 2744 2880 2940 3024 3087 3136 3360 3430 3528 3780 3920 4032 4116 4320 4410 4704 5040 5145 5292 5488 5880 6048 6174 6615 6720 6860 7056 7560 7840 8232 8640 8820 9261 9408 10080 10290 10584 10976 11760 12096 12348 13230 13720 14112 15120 15435 15680 16464 17640 18522 20160 20580 21168 21952 23520 24696 26460 27440 28224 30240 30870 32928 35280 37044 41160 42336 46305 47040 49392 52920 54880 60480 61740 65856 70560 74088 82320 84672 92610 98784 105840 109760 123480 141120 148176 164640 185220 197568 211680 246960 296352 329280 370440 423360 493920 592704 740880 987840 1481760 2963520 27398659 54797318 82195977 109594636 136993295 164391954 191790613 219189272 246587931 273986590 328783908 383581226 410979885 438378544 493175862 547973180 575371839 657567816 739763793 767162452 821959770 876757088 958953065 986351724 1095946360 1150743678 1232939655 1315135632 1342534291 1479527586 1534324904 1643919540 1726115517 1753514176 1917906130 1972703448 2191892720 2301487356 2465879310 2630271264 2685068582 2876859195 2959055172 3068649808 3287839080 3452231034 3698818965 3835812260 3945406896 4027602873 4383785440 4602974712 4931758620 5178346551 5260542528 5370137164 5753718390 5918110344 6137299616 6575678160 6712671455 6904462068 7397637930 7671624520 7890813792 8055205746 8630577585 8767570880 9205949424 9397740037 9863517240 10356693102 10740274328 11507436780 11836220688 12082808619 12274599232 13151356320 13425342910 13808924136 14795275860 15343249040 15781627584 16110411492 17261155170 18411898848 18795480074 19727034480 20138014365 20713386204 21480548656 23014873560 23672441376 24165617238 25891732755 26302712640 26850685820 27617848272 28193220111 29590551720 30686498080 32220822984 34522310340 36248425857 36823797696 37590960148 39454068960 40276028730 41426772408 42961097312 46029747120 46988700185 47344882752 48331234476 51783465510 53701371640 55235696544 56386440222 59181103440 60414043095 61372996160 64441645968 69044620680 72496851714 75181920296 78908137920 80552057460 82853544816 84579660333 85922194624 92059494240 93977400370 96662468952 103566931020 107402743280 110471393088 112772880444 118362206880 120828086190 128883291936 138089241360 140966100555 144993703428 150363840592 161104114920 165707089632 169159320666 181242129285 184118988480 187954800740 193324937904 207133862040 214805486560 225545760888 236724413760 241656172380 253738980999 257766583872 276178482720 281932201110 289987406856 300727681184 322208229840 331414179264 338318641332 362484258570 375909601480 386649875808 414267724080 422898301665 429610973120 451091521776 483312344760 507477961998 552356965440 563864402220 579974813712 601455362368 644416459680 676637282664 724968517140 751819202960 773299751616 828535448160 845796603330 902183043552 966624689520 1014955923996 1127728804440 1159949627424 1268694904995 1288832919360 1353274565328 1449937034280 1503638405920 1657070896320 1691593206660 1804366087104 1933249379040 2029911847992 2255457608880 2319899254848 2537389809990 2706549130656 2899874068560 3007276811840 3383186413320 3866498758080 4059823695984 4510915217760 5074779619980 5413098261312 5799748137120 6766372826640 8119647391968 9021830435520 10149559239960 11599496274240 13532745653280 16239294783936 20299118479920 27065491306560 40598236959840 81196473919680
• Sum of all divisors σ(n): 334044462720000
• Sum of proper divisors (its aliquot sum) s(n): 252847988800320
• 81196473919680 is an abundant number, because the sum of its proper divisors (252847988800320) is greater than itself. Its abundance is 171651514880640

Bases of 81196473919680

• Binary: 10010011101100100000110111111000010100011000000₂
• Hexadecimal: 0x49D906FC28C0
• Base-36: SS55852O0

Squares and roots of 81196473919680

• 81196473919680 squared (81196473919680²) is 6592867376989274423091302400
• 81196473919680 cubed (81196473919680³) is 535317584031618711253619413285044191232000
• The square root of 81196473919680 is 9010908.6067765663
• The cube root of 81196473919680 is 43302.4421245949

Scales and comparisons

• 81,196,473,919,680 seconds is equal to 2,581,796 years, 37 weeks, 16 hours, 48 minutes.
• To count from 1 to 81,196,473,919,680 would take you about six million, four hundred fifty-four thousand, four hundred ninety-one 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 81196473919680 cubic inches would be around 3608.5 feet tall.

Recreational maths with 81196473919680

• 81196473919680 backwards is 08691937469118
• 81196473919680 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81196473919680's digits is 72
• More coming soon!