81636824230640

Names of 81636824230640

• Cardinal: 81636824230640 can be written as Eighty-one trillion, six hundred thirty-six billion, eight hundred twenty-four million, two hundred thirty thousand, six hundred forty.

Scientific notation

• Scientific notation: 8.163682423064 × 10¹³

Factors of 81636824230640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 6728

Divisors of 81636824230640

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 59 70 80 98 112 118 140 196 211 236 245 271 280 295 392 413 422 472 490 542 560 590 784 826 844 944 980 1055 1084 1180 1355 1477 1652 1688 1897 1960 2065 2110 2168 2360 2710 2891 2954 3304 3376 3794 3920 4130 4220 4336 4720 5420 5782 5908 6173 6608 7385 7588 8260 8440 9485 10339 10840 11564 11816 12346 12449 13279 14455 14770 15176 15989 16520 16880 18970 20678 21680 23128 23632 24692 24898 26558 28910 29540 30352 30865 31978 33040 37940 41356 43211 46256 49384 49796 51695 53116 57181 57820 59080 61730 62245 63956 66395 75880 79945 82712 86422 87143 98768 99592 103390 106232 111923 114362 115640 118160 123460 124490 127912 132790 151760 159890 165424 172844 174286 199184 206780 212464 216055 223846 228724 231280 246920 248980 255824 265580 285905 302477 319780 345688 348572 364207 400267 413560 432110 435715 447692 457448 493840 497960 531160 559615 571810 604954 610001 639560 691376 697144 728414 783461 800534 827120 864220 871430 895384 914896 995920 1062320 1119230 1143620 1209908 1220002 1279120 1302503 1394288 1456828 1512385 1566922 1601068 1672883 1728440 1742860 1790768 1821035 2001335 2238460 2287240 2419816 2440004 2549449 2605006 2801869 2913656 3024770 3050005 3133844 3202136 3345766 3373679 3456880 3485720 3642070 3917305 4002670 4476920 4574480 4839632 4880008 5098898 5210012 5603738 5827312 6049540 6100010 6267688 6404272 6512515 6691532 6747358 6971440 7284140 7834610 8005340 8364415 8953840 9117521 9760016 10197796 10420024 11207476 11710181 12099080 12200020 12535376 12747245 13025030 13383064 13494716 14009345 14568280 15669220 16010680 16728830 16868395 17846143 18235042 20395592 20840048 22414952 23420362 23615753 24198160 24400040 25494490 26050060 26766128 26989432 28018690 29136560 31338440 32021360 33457660 33736790 35692286 36470084 40791184 44829904 45587605 46840724 47231506 48800080 50988980 52100120 53978864 56037380 58550905 62676880 63822647 66915320 67473580 71384572 72940168 76847677 81971267 89230715 91175210 93681448 94463012 98700097 101977960 104200240 112074760 117101810 118078765 127645294 133830640 134947160 142769144 145880336 153695354 163942534 165310271 178461430 182350420 187362896 188926024 197400194 203955920 224149520 234203620 236157530 255290588 269894320 285538288 307390708 319113235 327885068 330620542 352978313 356922860 364700840 377852048 384238385 394800388 409856335 468407240 472315060 493500485 510581176 537933739 614781416 638226470 655770136 661241084 690900679 705956626 713845720 729401680 768476770 789600776 819712670 826551355 936814480 944630120 987000970 1021162352 1075867478 1229562832 1276452940 1311540272 1322482168 1381801358 1411913252 1427691440 1536953540 1579201552 1639425340 1653102710 1764891565 1889260240 1974001940 2151734956 2470848191 2552905880 2644964336 2689668695 2763602716 2823826504 3073907080 3278850680 3306205420 3454503395 3529783130 3765536173 3948003880 4303469912 4836304753 4941696382 5105811760 5379337390 5527205432 5647653008 6147814160 6557701360 6612410840 6909006790 7059566260 7531072346 7896007760 8606939824 9672609506 9883392764 10758674780 11054410864 12354240955 13224821680 13818013580 14119132520 15062144692 17295937337 18827680865 19345219012 19766785528 20825720467 21517349560 24181523765 24708481910 27636027160 28238265040 30124289384 34591874674 37655361730 38690438024 39533571056 41651440934 43034699120 48363047530 49416963820 55272054320 60248578768 69183749348 75310723460 77380876048 83302881868 86479686685 96726095060 98833927640 104128602335 138367498696 145780043269 150621446920 166605763736 172959373370 193452190120 197667855280 208257204670 276734997392 291560086538 301242893840 333211527472 345918746740 386904380240 416514409340 583120173076 691837493480 728900216345 833028818680 1020460302883 1166240346152 1383674986960 1457800432690 1666057637360 2040920605766 2332480692304 2915600865380 4081841211532 5102301514415 5831201730760 8163682423064 10204603028830 11662403461520 16327364846128 20409206057660 40818412115320 81636824230640
• Sum of all divisors σ(n): 226469875000320
• Sum of proper divisors (its aliquot sum) s(n): 144833050769680
• 81636824230640 is an abundant number, because the sum of its proper divisors (144833050769680) is greater than itself. Its abundance is 63196226539040

Bases of 81636824230640

• Binary: 10010100011111110001101111010001010101011110000₂
• Hexadecimal: 0x4A3F8DE8AAF0
• Base-36: SXRFTCH68

Squares and roots of 81636824230640

• 81636824230640 squared (81636824230640²) is 6664571070464410227914809600
• 81636824230640 cubed (81636824230640³) is 544074417052111327731992773274982086144000
• The square root of 81636824230640 is 9035309.8580314333
• The cube root of 81636824230640 is 43380.5813001937

Scales and comparisons

• 81,636,824,230,640 seconds is equal to 2,595,798 years, 25 weeks, 3 days, 19 hours, 37 minutes, 20 seconds.
• To count from 1 to 81,636,824,230,640 would take you about six million, four hundred eighty-nine thousand, four hundred ninety-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 81636824230640 cubic inches would be around 3615 feet tall.

Recreational maths with 81636824230640

• 81636824230640 backwards is 04603242863618
• The number of decimal digits it has is: 14
• The sum of 81636824230640's digits is 53
• More coming soon!