81443070540

Names of 81443070540

• Cardinal: 81443070540 can be written as Eighty-one billion, four hundred forty-three million, seventy thousand, five hundred forty.

Scientific notation

• Scientific notation: 8.144307054 × 10¹⁰

Factors of 81443070540

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7177

Divisors of 81443070540

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 127 130 135 156 169 180 195 234 254 260 270 338 351 381 390 468 507 508 540 585 635 676 702 762 780 845 1014 1143 1170 1270 1404 1521 1524 1651 1690 1755 1905 2028 2286 2340 2535 2540 3042 3302 3380 3429 3510 3810 4563 4572 4953 5070 5715 6084 6604 6858 7020 7027 7605 7620 8255 9126 9906 10140 11430 13716 14054 14859 15210 16510 17145 18252 19812 21081 21463 22815 22860 24765 28108 29718 30420 33020 34290 35135 42162 42926 44577 45630 49530 59436 63243 64389 68580 70270 74295 84324 85852 89154 91260 91351 99060 105405 107315 126486 128778 140540 148590 178308 182702 189729 193167 210810 214630 222885 252972 257556 274053 297180 316215 321945 365404 379458 386334 421620 429260 445770 456755 548106 579501 632430 643890 758916 772668 822159 891540 892429 913510 948645 965835 1096212 1159002 1187563 1264860 1287780 1370265 1644318 1784858 1827020 1897290 1931670 2318004 2375126 2466477 2677287 2740530 2897505 3288636 3562689 3569716 3794580 3863340 4110795 4462145 4750252 4932954 5354574 5481060 5795010 5937815 7125378 8031861 8221590 8924290 9865908 10688067 10709148 11590020 11601577 11875630 12332385 13386435 14250756 16063722 16443180 17813445 17848580 21376134 23203154 23751260 24095583 24664770 26772870 32064201 32127444 34804731 35626890 40159305 42752268 46406308 48191166 49329540 53440335 53545740 58007885 64128402 69609462 71253780 80318610 96382332 104414193 106880670 116015770 120477915 128256804 139218924 150820501 160321005 160637220 174023655 208828386 213761340 232031540 240955830 301641002 313242579 320642010 348047310 417656772 452461503 481911660 522070965 603282004 626485158 641284020 696094620 754102505 904923006 1044141930 1252970316 1357384509 1508205010 1566212895 1809846012 2088283860 2262307515 2714769018 3016410020 3132425790 4072153527 4524615030 5429538036 6264851580 6786922545 8144307054 9049230060 13573845090 16288614108 20360767635 27147690180 40721535270 81443070540
• Sum of all divisors σ(n): 276568104960
• Sum of proper divisors (its aliquot sum) s(n): 195125034420
• 81443070540 is an abundant number, because the sum of its proper divisors (195125034420) is greater than itself. Its abundance is 113681963880

Bases of 81443070540

• Binary: 1001011110110011000101010001001001100₂
• Hexadecimal: 0x12F662A24C
• Base-36: 11EX3NF0

Squares and roots of 81443070540

• 81443070540 squared (81443070540²) is 6632973738983415891600
• 81443070540 cubed (81443070540³) is 540209748113993888349735793464000
• The square root of 81443070540 is 285382.3234539939
• The cube root of 81443070540 is 4334.6234847375

Scales and comparisons

• 81,443,070,540 seconds is equal to 2,589 years, 33 weeks, 1 day, 3 hours, 9 minutes.
• To count from 1 to 81,443,070,540 would take you about five thousand, one hundred seventy-nine 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 81443070540 cubic inches would be around 361.2 feet tall.

Recreational maths with 81443070540

• 81443070540 backwards is 04507034418
• 81443070540 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81443070540's digits is 36
• More coming soon!