81476130372

Names of 81476130372

• Cardinal: 81476130372 can be written as Eighty-one billion, four hundred seventy-six million, one hundred thirty thousand, three hundred seventy-two.

Scientific notation

• Scientific notation: 8.1476130372 × 10¹⁰

Factors of 81476130372

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 156

Divisors of 81476130372

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 19 21 26 28 38 39 41 42 52 57 71 76 78 82 84 91 114 123 133 142 156 164 182 213 228 246 247 266 273 284 287 361 364 399 426 492 494 497 532 533 546 574 722 741 779 798 852 861 923 988 994 1066 1083 1092 1148 1349 1444 1482 1491 1558 1596 1599 1722 1729 1846 1988 2132 2166 2337 2527 2698 2769 2911 2964 2982 3116 3198 3444 3458 3692 3731 4047 4332 4674 4693 5041 5054 5187 5396 5453 5538 5822 5964 6396 6461 6916 7462 7581 8094 8733 9348 9386 9443 10082 10108 10127 10374 10906 11076 11193 11644 12922 14079 14801 14924 15123 15162 16188 16359 17466 17537 18772 18886 19383 20164 20254 20377 20748 21812 22386 25631 25844 28158 28329 29602 30246 30324 30381 32718 32851 34932 35074 35287 37772 37843 38766 40508 40754 44403 44772 51262 52611 55309 56316 56658 59204 60492 60762 61131 65436 65533 65702 70148 70574 70889 75686 76893 77532 81508 88806 95779 98553 102524 103607 105222 105861 110618 113316 113529 121524 122262 122759 131066 131404 141148 141778 151372 153786 165927 177612 179417 191558 192413 196599 197106 206681 207214 210444 211722 212667 221236 227058 244524 245518 262132 264901 283556 287337 307572 310821 331854 333203 358834 368277 383116 384826 387163 393198 394212 413362 414428 423444 425334 454116 458731 491036 529802 538251 574674 577239 620043 621642 663708 666406 670453 717668 719017 736554 769652 774326 786396 794703 826724 850668 917462 999609 1050871 1059604 1076502 1149348 1154478 1161489 1240086 1243284 1245127 1332812 1340906 1346891 1376193 1438034 1446767 1473108 1548652 1589406 1819801 1834924 1999218 2011359 2101742 2153004 2157051 2308956 2322978 2332421 2480172 2490254 2681812 2686853 2693782 2752386 2876068 2893534 3152613 3178812 3639602 3735381 3926939 3998436 4022718 4040673 4203484 4314102 4340301 4645956 4664842 4980508 5033119 5373706 5387564 5459403 5504772 5787068 6305226 6997263 7279204 7356097 7470762 7853878 8045436 8060559 8081346 8628204 8680602 8715889 9329684 10066238 10747412 10918806 11780817 12610452 12738607 13661323 13994526 14712194 14941524 15099357 15707756 16121118 16162692 17361204 17431778 18807971 20132476 21837612 22068291 23561634 23657413 25477214 26147667 27322646 27488573 27989052 29424388 30198714 32242236 34863556 37615942 38215821 40983969 44136582 47123268 47314826 50954428 51050207 52295334 54645292 54977146 56423913 60397428 70972239 74611841 75231884 76431642 81967938 82465719 88273164 94629652 95629261 102100414 104590668 109954292 112847826 141944478 149223682 152863284 153150621 163935876 164931438 165601891 191258522 204200828 223835523 225695652 283888956 286887783 298447364 306301242 329862876 331203782 357351449 382517044 447671046 496805673 522282887 573775566 612602484 662407564 714702898 895342092 969953933 993611346 1044565774 1072054347 1147551132 1429405796 1566848661 1939907866 1987222692 2089131548 2144108694 2909861799 3133697322 3879815732 4288217388 5819723598 6267394644 6789677531 11639447196 13579355062 20369032593 27158710124 40738065186 81476130372
• Sum of all divisors σ(n): 256581956736
• Sum of proper divisors (its aliquot sum) s(n): 175105826364
• 81476130372 is an abundant number, because the sum of its proper divisors (175105826364) is greater than itself. Its abundance is 93629695992

Bases of 81476130372

• Binary: 1001011111000010110110001011001000100₂
• Hexadecimal: 0x12F85B1644
• Base-36: 11FGS8JO

Squares and roots of 81476130372

• 81476130372 squared (81476130372²) is 6638359820395140858384
• 81476130372 cubed (81476130372³) is 540867870182761001132998773238848
• The square root of 81476130372 is 285440.2395808973
• The cube root of 81476130372 is 4335.2099170255

Scales and comparisons

• 81,476,130,372 seconds is equal to 2,590 years, 35 weeks, 5 days, 18 hours, 26 minutes, 12 seconds.
• To count from 1 to 81,476,130,372 would take you about five thousand, one hundred eighty-one 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 81476130372 cubic inches would be around 361.3 feet tall.

Recreational maths with 81476130372

• 81476130372 backwards is 27303167418
• 81476130372 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81476130372's digits is 42
• More coming soon!