81242948562165

Names of 81242948562165

• Cardinal: 81242948562165 can be written as Eighty-one trillion, two hundred forty-two billion, nine hundred forty-eight million, five hundred sixty-two thousand, one hundred sixty-five.

Scientific notation

• Scientific notation: 8.1242948562165 × 10¹³

Factors of 81242948562165

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 202

Divisors of 81242948562165

• Number of divisors d(n): 672
• Complete list of divisors:
  1 3 5 9 13 15 17 27 37 39 45 51 65 81 85 111 117 127 135 153 169 185 195 221 243 255 333 351 381 405 459 481 507 555 585 629 635 663 729 765 845 999 1053 1105 1143 1215 1377 1443 1521 1651 1665 1755 1887 1905 1989 2159 2197 2295 2405 2535 2873 2997 3145 3159 3315 3429 3645 4131 4329 4563 4699 4953 4995 5265 5661 5715 5967 6253 6477 6591 6885 7215 7605 8177 8255 8619 8991 9435 9477 9945 10287 10795 10985 12393 12987 13689 14097 14365 14859 14985 15795 16129 16983 17145 17901 18759 19431 19773 20655 21463 21645 22815 23495 24531 24765 25857 26973 28067 28305 29835 30861 31265 32385 32955 37349 38961 40885 41067 42291 43095 44577 44955 47385 48387 50949 51435 53703 56277 58293 59319 61087 61965 64389 64935 68445 70485 73593 74295 77571 79883 80645 81289 84201 84915 89505 92583 93795 97155 98865 106301 107315 112047 116883 122655 123201 126873 129285 133731 134865 140335 145161 152847 154305 161109 168831 174879 177957 183261 186745 193167 194805 205335 209677 211455 220779 222885 232713 239649 241935 243867 252603 254745 268515 274193 279019 281385 291465 296595 305435 318903 321945 336141 350649 364871 367965 380619 387855 399415 401193 406445 421005 435483 458541 462915 506493 524637 531505 533871 549783 560235 579501 584415 596773 616005 629031 634365 662337 668655 698139 718947 725805 731601 757809 764235 794131 805545 822579 837057 844155 874395 889785 916305 956709 965835 1008423 1038479 1048385 1094613 1103895 1141857 1163565 1198245 1203579 1219335 1263015 1306449 1370965 1381913 1395095 1519479 1573911 1594515 1601613 1649349 1680705 1738503 1753245 1790319 1824355 1887093 1903095 1987011 2005965 2094417 2156841 2177415 2194803 2273427 2292705 2382393 2467737 2511171 2532465 2623185 2669355 2725801 2748915 2870127 2897505 2983865 3025269 3115437 3145155 3283839 3311685 3425571 3490695 3564509 3594735 3658005 3789045 3919347 3970655 4112895 4145739 4185285 4558437 4743323 4783545 4948047 5042115 5192395 5215509 5370957 5473065 5661279 5709285 5961033 6017895 6470523 6532245 6584409 6820281 6909565 7147179 7403211 7533513 7597395 7758049 7869555 8008065 8177403 8246745 8610381 8692515 8951595 9075807 9346311 9435465 9851517 9935055 10145141 10323703 10472085 10693527 10784205 10974015 11367135 11758041 11911965 12338685 12437217 12555855 13500227 13629005 14229969 14350635 14844141 15126345 15577185 15646527 16112871 16419195 16983837 17127855 17822545 19411569 19596735 19753227 20460843 20728695 21441537 22209633 22600539 22792185 23274147 23716615 24532209 24740235 25831143 26077545 26854785 27227421 28038933 28306395 29554551 29805165 30435423 30971109 32080581 32352615 32922045 34101405 35435413 35735895 37016055 37311651 37667565 38790245 40500681 40887015 42689907 43051905 44532423 45379035 46338617 46731555 48338613 49257585 50725705 50951511 51618515 53467635 58234707 58790205 59259681 62186085 64324611 66628899 67501135 67801617 69822441 71149845 73596627 74220705 77493429 78232635 80564355 84116799 84919185 88663653 91306269 92913327 96241743 97057845 98766135 100854637 102304215 106306239 107207685 111048165 111934953 113002695 116370735 121502043 122661045 128069721 129155715 131886833 136137105 139015851 140194665 145015839 147772755 152177115 152854533 154855545 160402905 175502951 177177065 186558255 192973833 199886697 202503405 203404851 209467323 213449535 220789881 222662115 231693085 241693065 252350397 254757555 265990959 273918807 278739981 288725229 291173535 296298405 302563911 318918717 321623055 333144495 335804859 339008085 349112205 364506129 367983135 384209163 387467145 395660499 417047553 420583995 435047517 443318265 456531345 464566635 481208715 504273185 526508853 531531195 559674765 578921499 602402021 607510215 628401969 640348605 659434165 662369643 695079255 725079195 757051191 764272665 821756421 836219943 866175687 877514755 907691733 956756151 964869165 999433485 1007414577 1017024255 1047336615 1093518387 1103949405 1152627489 1186981497 1251142659 1261751985 1311110281 1329954795 1369594035 1393699905 1443626145 1512819555 1579526559 1594593585 1679024295 1714528829 1807206063 1822530645 1885205907 1921045815 1978302495 1987108929 2085237765 2175237585 2465269263 2508659829 2598527061 2632544265 2723075199 2870268453 2894607495 3012010105 3142009845 3280555161 3311848215 3457882467 3560944491 3753427977 3785255955 3933330843 4108782105 4181099715 4330878435 4538458665 4738579677 4783780755 5037072885 5143586487 5421618189 5467591935 5655617721 5763137445 5934907485 6255713295 6555551405 7395807789 7525979487 7897632795 8169225597 8572644145 8610805359 9036030315 9426029535 9841665483 9935544645 10682833473 11260283931 11799992529 12326346315 12543299145 12992635305 13615375995 14215739031 14351342265 15430759461 16264854567 16402775805 17289412335 17804722455 18767139885 19666654215 22288874777 23692898385 24507676791 25717932435 25832416077 27108090945 28278088605 32048500419 33780851793 35399977587 36979038945 37629897435 40846127985 42647217093 43054026795 46292278383 48794563701 49208327415 53414167365 56301419655 58999962645 66866624331 71078695155 73523030373 77153797305 81324272835 96145501257 106199932761 111444373885 122538383955 127941651279 129162080385 138876835149 146383691103 160242502095 168904258965 176999887935 200599872993 213236085465 231461391915 243972818505 318599798283 334333121655 367615151865 416630505447 439151073309 480727506285 530999663805 601799618979 639708256395 694384175745 731918455515 955799394849 1002999364965 1249891516341 1592998991415 1805398856937 2083152527235 2195755366545 3008998094895 4778996974245 5416196570811 6249457581705 9026994284685 16248589712433 27080982854055 81242948562165
• Sum of all divisors σ(n): 173558095895520
• Sum of proper divisors (its aliquot sum) s(n): 92315147333355
• 81242948562165 is an abundant number, because the sum of its proper divisors (92315147333355) is greater than itself. Its abundance is 11072198771190

Bases of 81242948562165

• Binary: 10010011110001111011001000101101110110011110101₂
• Hexadecimal: 0x49E3D916ECF5
• Base-36: SSQHTXYB9

Squares and roots of 81242948562165

• 81242948562165 squared (81242948562165²) is 6600416691074588040869487225
• 81242948562165 cubed (81242948562165³) is 536237313721828069463727411402734585842125
• The square root of 81242948562165 is 9013487.0367779971
• The cube root of 81242948562165 is 43310.7022602933

Scales and comparisons

• 81,242,948,562,165 seconds is equal to 2,583,274 years, 24 weeks, 15 hours, 42 minutes, 45 seconds.
• To count from 1 to 81,242,948,562,165 would take you about six million, four hundred fifty-eight thousand, one hundred eighty-six 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 81242948562165 cubic inches would be around 3609.2 feet tall.

Recreational maths with 81242948562165

• 81242948562165 backwards is 56126584924218
• The number of decimal digits it has is: 14
• The sum of 81242948562165's digits is 63
• More coming soon!