81330089035920

Names of 81330089035920

• Cardinal: 81330089035920 can be written as Eighty-one trillion, three hundred thirty billion, eighty-nine million, thirty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 8.133008903592 × 10¹³

Factors of 81330089035920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 24136

Divisors of 81330089035920

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 43 48 60 80 86 120 129 131 172 215 240 258 262 344 393 430 516 524 645 655 688 786 860 1032 1048 1290 1310 1572 1720 1965 2064 2096 2580 2620 2851 3144 3440 3930 5160 5240 5633 5702 6288 7860 8553 10320 10480 11266 11404 14255 15720 16899 17106 21101 22532 22808 28165 28510 31440 33798 34212 42202 42765 45064 45616 56330 57020 63303 67596 68424 84404 84495 85530 90128 105505 112660 114040 122593 126606 135192 136848 168808 168990 171060 211010 225320 228080 245186 253212 270384 316515 337616 337980 342120 367779 373481 422020 450640 490372 506424 612965 633030 675960 684240 735558 746962 844040 907343 980744 1012848 1120443 1225930 1266060 1351920 1471116 1493924 1688080 1814686 1838895 1867405 1961488 2240886 2451860 2532120 2722029 2764231 2942232 2987848 3629372 3677790 3734810 4481772 4536715 4903720 5064240 5444058 5528462 5602215 5884464 5975696 7258744 7355580 7469620 8292693 8963544 9073430 9807440 10888116 11056924 11204430 13610145 13821155 14517488 14711160 14939240 16059683 16585386 17927088 18146860 21776232 22113848 22408860 27220290 27642310 29422320 29878480 32119366 33170772 36293720 41463465 43552464 44227696 44817720 48179049 54440580 55284620 60158951 64238732 66341544 72587440 80298415 82926930 89635440 96358098 108881160 110569240 118861933 120317902 128477464 132683088 160596830 165853860 180476853 192716196 217762320 221138480 237723866 240635804 240895245 256954928 300794755 321193660 331707720 356585799 360953706 385432392 475447732 481271608 481790490 594309665 601589510 642387320 663415440 713171598 721907412 770864784 902384265 950895464 962543216 963580980 1188619330 1203179020 1284774640 1426343196 1443814824 1782928995 1804768530 1901790928 1927161960 2377238660 2406358040 2586834893 2852686392 2887629648 3565857990 3609537060 3854323920 4754477320 4812716080 5173669786 5705372784 7131715980 7219074120 7760504679 7880822581 9508954640 10347339572 12934174465 14263431960 14438148240 15521009358 15761645162 20694679144 23642467743 25868348930 28526863920 31042018716 31523290324 38802523395 39404112905 41389358288 47284935486 51736697860 62084037432 63046580648 77605046790 78808225810 94569870972 103473395720 118212338715 124168074864 126093161296 155210093580 157616451620 189139741944 206946791440 236424677430 310420187160 315232903240 338875370983 378279483888 472849354860 620840374320 630465806480 677750741966 945698709720 1016626112949 1355501483932 1694376854915 1891397419440 2033252225898 2711002967864 3388753709830 4066504451796 5083130564745 5422005935728 6777507419660 8133008903592 10166261129490 13555014839320 16266017807184 20332522258980 27110029678640 40665044517960 81330089035920
• Sum of all divisors σ(n): 260059475985408
• Sum of proper divisors (its aliquot sum) s(n): 178729386949488
• 81330089035920 is an abundant number, because the sum of its proper divisors (178729386949488) is greater than itself. Its abundance is 97399297913568

Bases of 81330089035920

• Binary: 10010011111100000100011000100010000100010010000₂
• Hexadecimal: 0x49F823110890
• Base-36: STUIZ4Q6O

Squares and roots of 81330089035920

• 81330089035920 squared (81330089035920²) is 6614583382590674595050246400
• 81330089035920 cubed (81330089035920³) is 537964655441616450488132530638134450688000
• The square root of 81330089035920 is 9018319.6348277655
• The cube root of 81330089035920 is 43326.1816203403

Scales and comparisons

• 81,330,089,035,920 seconds is equal to 2,586,045 years, 13 weeks, 3 days, 22 hours, 52 minutes.
• To count from 1 to 81,330,089,035,920 would take you about six million, four hundred sixty-five thousand, one hundred thirteen 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 81330089035920 cubic inches would be around 3610.5 feet tall.

Recreational maths with 81330089035920

• 81330089035920 backwards is 02953098003318
• The number of decimal digits it has is: 14
• The sum of 81330089035920's digits is 51
• More coming soon!