81084331715671440

Names of 81084331715671440

• Cardinal: 81084331715671440 can be written as Eighty-one quadrillion, eighty-four trillion, three hundred thirty-one billion, seven hundred fifteen million, six hundred seventy-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 8.108433171567144 × 10¹⁶

Factors of 81084331715671440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 981114

Divisors of 81084331715671440

• Number of divisors d(n): 300
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 36 39 40 45 48 52 54 60 65 72 78 80 81 90 104 108 117 120 130 135 144 156 162 180 195 208 216 234 240 260 270 312 324 351 360 390 405 432 468 520 540 585 624 648 702 720 780 810 936 1040 1053 1080 1170 1296 1404 1560 1620 1755 1872 2106 2160 2340 2808 3120 3240 3510 4212 4680 5265 5616 6480 7020 8424 9360 10530 14040 16848 21060 28080 42120 84240 981091 1962182 2943273 3924364 4905455 5886546 7848728 8829819 9810910 11773092 12754183 14716365 15697456 17659638 19621820 23546184 25508366 26489457 29432730 35319276 38262549 39243640 44149095 47092368 51016732 52978914 58865460 63770915 70638552 76525098 78487280 79468371 88298190 102033464 105957828 114787647 117730920 127541830 132447285 141277104 153050196 158936742 176596380 191312745 204066928 211915656 229575294 235461840 255083660 264894570 306100392 317873484 344362941 353192760 382625490 397341855 423831312 459150588 510167320 529789140 573938235 612200784 635746968 688725882 706385520 765250980 794683710 918301176 1020334640 1033088823 1059578280 1147876470 1271493936 1377451764 1530501960 1589367420 1721814705 1836602352 2066177646 2119156560 2295752940 2754903528 3061003920 3178734840 3443629410 4132355292 4591505880 5165444115 5509807056 6357469680 6887258820 8264710584 9183011760 10330888230 13774517640 16529421168 20661776460 27549035280 41323552920 82647105840 962539550281 1925079100562 2887618650843 3850158201124 4812697751405 5775237301686 7700316402248 8662855952529 9625395502810 11550474603372 12513014153653 14438093254215 15400632804496 17325711905058 19250791005620 23100949206744 25026028307306 25988567857587 28876186508430 34651423810116 37539042460959 38501582011240 43314279762645 46201898413488 50052056614612 51977135715174 57752373016860 62565070768265 69302847620232 75078084921918 77003164022480 77965703572761 86628559525290 100104113229224 103954271430348 112617127382877 115504746033720 125130141536530 129942839287935 138605695240464 150156169843836 155931407145522 173257119050580 187695212304795 200208226458448 207908542860696 225234254765754 231009492067440 250260283073060 259885678575870 300312339687672 311862814291044 337851382148631 346514238101160 375390424609590 389828517863805 415817085721392 450468509531508 500520566146120 519771357151740 563085636914385 600624679375344 623725628582088 675702764297262 693028476202320 750780849219180 779657035727610 900937019063016 1001041132292240 1013554146445893 1039542714303480 1126171273828770 1247451257164176 1351405528594524 1501561698438360 1559314071455220 1689256910743155 1801874038126032 2027108292891786 2079085428606960 2252342547657540 2702811057189048 3003123396876720 3118628142910440 3378513821486310 4054216585783572 4504685095315080 5067770732229465 5405622114378096 6237256285820880 6757027642972620 8108433171567144 9009370190630160 10135541464458930 13514055285945240 16216866343134288 20271082928917860 27028110571890480 40542165857835720 81084331715671440
• Sum of all divisors σ(n): 303281120787130332
• Sum of proper divisors (its aliquot sum) s(n): 222196789071458892
• 81084331715671440 is an abundant number, because the sum of its proper divisors (222196789071458892) is greater than itself. Its abundance is 141112457355787452

Bases of 81084331715671440

• Binary: 100100000000100011100010100100100110000110011010110010000₂
• Hexadecimal: 0x12011C524C33590
• Base-36: M6DZVR43T00

Squares and roots of 81084331715671440

• 81084331715671440 squared (81084331715671440²) is 6574668849777041368598890031673600
• 81084331715671440 cubed (81084331715671440³) is 533102629936013621775244280765561077731090921984000
• The square root of 81084331715671440 is 284753106.5952950055
• The cube root of 81084331715671440 is 432824.9762712637

Scales and comparisons

• 81,084,331,715,671,440 seconds is equal to 2,578,230,938 years, 13 weeks, 23 hours, 24 minutes.
• To count from 1 to 81,084,331,715,671,440 would take you about seven billion, seven hundred thirty-four million, six hundred ninety-two thousand, eight hundred fourteen 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 81084331715671440 cubic inches would be around 36068.7 feet tall.

Recreational maths with 81084331715671440

• 81084331715671440 backwards is 04417651713348018
• The number of decimal digits it has is: 17
• The sum of 81084331715671440's digits is 63
• More coming soon!