81363071160

Names of 81363071160

• Cardinal: 81363071160 can be written as Eighty-one billion, three hundred sixty-three million, seventy-one thousand, one hundred sixty.

Scientific notation

• Scientific notation: 8.136307116 × 10¹⁰

Factors of 81363071160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 10476

Divisors of 81363071160

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 49 54 56 60 63 70 72 81 84 90 98 105 108 120 126 135 140 147 162 168 180 189 196 210 216 245 252 270 280 294 315 324 343 360 378 392 405 420 441 490 504 540 567 588 630 648 686 735 756 810 840 882 945 980 1029 1080 1134 1176 1260 1323 1372 1470 1512 1620 1715 1764 1890 1960 2058 2205 2268 2401 2520 2646 2744 2835 2940 3087 3240 3430 3528 3780 3969 4116 4410 4536 4802 5145 5292 5670 5880 6174 6615 6860 7203 7560 7938 8232 8820 9261 9604 10290 10459 10584 11340 12005 12348 13230 13720 14406 15435 15876 17640 18522 19208 19845 20580 20918 21609 22680 24010 24696 26460 27783 28812 30870 31377 31752 36015 37044 39690 41160 41836 43218 46305 48020 52295 52920 55566 57624 61740 62754 64827 72030 73213 74088 79380 83672 86436 92610 94131 96040 104590 108045 111132 123480 125508 129654 138915 144060 146426 156885 158760 172872 185220 188262 194481 209180 216090 219639 222264 251016 259308 277830 282393 288120 292852 313770 324135 366065 370440 376524 388962 418360 432180 439278 470655 512491 518616 555660 564786 585704 627540 648270 658917 732130 753048 777924 847179 864360 878556 941310 972405 1024982 1098195 1111320 1129572 1255080 1296540 1317834 1411965 1464260 1537473 1555848 1694358 1757112 1882620 1944810 1976751 2049964 2196390 2259144 2562455 2593080 2635668 2823930 2928520 3074946 3294585 3388716 3587437 3765240 3889620 3953502 4099928 4235895 4392780 4612419 5124910 5271336 5647860 5930253 6149892 6589170 6777432 7174874 7687365 7779240 7907004 8471790 8785560 9224838 9883755 10249820 10762311 11295720 11860506 12299784 13178340 13837257 14349748 15374730 15814008 16943580 17937185 18449676 19767510 20499640 21524622 23062095 23721012 25112059 26356680 27674514 28699496 29651265 30749460 32286933 33887160 35874370 36899352 39535020 41511771 43049244 46124190 47442024 50224118 53811555 55349028 59302530 61498920 64573866 69186285 71748740 75336177 79070040 83023542 86098488 92248380 96860799 100448236 107623110 110698056 118605060 125560295 129147732 138372570 143497480 150672354 161434665 166047084 184496760 193721598 200896472 207558855 215246220 226008531 237210120 251120590 258295464 276745140 290582397 301344708 322869330 332094168 376680885 387443196 415117710 430492440 452017062 484303995 502241180 553490280 581164794 602689416 645738660 678025593 753361770 774886392 830235420 904034124 968607990 1004482360 1130042655 1162329588 1291477320 1356051186 1452911985 1506723540 1660470840 1808068248 1937215980 2034076779 2260085310 2324659176 2712102372 2905823970 3013447080 3390127965 3874431960 4068153558 4520170620 5424204744 5811647940 6780255930 8136307116 9040341240 10170383895 11623295880 13560511860 16272614232 20340767790 27121023720 40681535580 81363071160
• Sum of all divisors σ(n): 319060229400
• Sum of proper divisors (its aliquot sum) s(n): 237697158240
• 81363071160 is an abundant number, because the sum of its proper divisors (237697158240) is greater than itself. Its abundance is 156334087080

Bases of 81363071160

• Binary: 1001011110001100111011111000010111000₂
• Hexadecimal: 0x12F19DF0B8
• Base-36: 11DLGZI0

Squares and roots of 81363071160

• 81363071160 squared (81363071160²) is 6619949348587223745600
• 81363071160 cubed (81363071160³) is 538619409924697931080094536896000
• The square root of 81363071160 is 285242.1272533215
• The cube root of 81363071160 is 4333.2037576771

Scales and comparisons

• 81,363,071,160 seconds is equal to 2,587 years, 4 weeks, 6 days, 5 hours, 6 minutes.
• To count from 1 to 81,363,071,160 would take you about five thousand, one hundred seventy-four 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 81363071160 cubic inches would be around 361.1 feet tall.

Recreational maths with 81363071160

• 81363071160 backwards is 06117036318
• 81363071160 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81363071160's digits is 36
• More coming soon!