81384136704

Names of 81384136704

• Cardinal: 81384136704 can be written as Eighty-one billion, three hundred eighty-four million, one hundred thirty-six thousand, seven hundred four.

Scientific notation

• Scientific notation: 8.1384136704 × 10¹⁰

Factors of 81384136704

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 187

Divisors of 81384136704

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 32 36 38 39 41 48 52 57 64 72 76 78 82 96 104 109 114 117 123 128 144 152 156 164 171 192 208 218 228 234 246 247 256 288 304 312 327 328 342 369 384 416 436 456 468 492 494 512 533 576 608 624 654 656 684 738 741 768 779 832 872 912 936 981 984 988 1024 1066 1152 1216 1248 1308 1312 1368 1417 1476 1482 1536 1558 1599 1664 1744 1824 1872 1962 1968 1976 2048 2071 2132 2223 2304 2337 2432 2496 2616 2624 2736 2834 2952 2964 3072 3116 3198 3328 3488 3648 3744 3924 3936 3952 4096 4142 4251 4264 4446 4469 4608 4674 4797 4864 4992 5232 5248 5472 5668 5904 5928 6144 6213 6232 6396 6656 6976 7011 7296 7488 7848 7872 7904 8192 8284 8502 8528 8892 8938 9216 9348 9594 9728 9984 10127 10464 10496 10944 11336 11808 11856 12288 12426 12464 12753 12792 13312 13407 13952 14022 14592 14976 15696 15744 15808 16568 17004 17056 17784 17876 18432 18639 18696 19188 19456 19968 20254 20928 20992 21888 22672 23616 23712 24576 24852 24928 25506 25584 26624 26814 26923 27904 28044 29184 29952 30381 31392 31488 31616 33136 34008 34112 35568 35752 36864 37278 37392 38376 38912 39936 40221 40508 41856 41984 43776 45344 47232 47424 49704 49856 51012 51168 53248 53628 53846 55808 56088 58097 58368 59904 60762 62784 62976 63232 66272 68016 68224 71136 71504 73728 74556 74784 76752 77824 79872 80442 80769 81016 83712 83968 84911 87552 90688 91143 94464 94848 99408 99712 102024 102336 106496 107256 107692 111616 112176 116194 116736 119808 121524 125568 125952 126464 132544 136032 136448 142272 143008 149112 149568 153504 155648 159744 160884 161538 162032 167424 167936 169822 174291 175104 181376 182286 188928 189696 198816 199424 204048 204672 214512 215384 223232 224352 232388 233472 239616 242307 243048 251136 251904 252928 254733 265088 272064 272896 284544 286016 298224 299136 307008 319488 321768 323076 324064 334848 335872 339644 348582 350208 362752 364572 377856 379392 397632 398848 408096 409344 429024 430768 446464 448704 464776 466944 479232 484614 486096 502272 503808 505856 509466 522873 530176 544128 545792 569088 572032 596448 598272 614016 643536 646152 648128 669696 679288 697164 700416 725504 729144 755712 758784 764199 795264 797696 816192 818688 858048 861536 892928 897408 929552 958464 969228 972192 1004544 1007616 1011712 1018932 1045746 1060352 1088256 1091584 1103843 1138176 1144064 1192896 1196544 1228032 1287072 1292304 1296256 1339392 1358576 1394328 1400832 1451008 1458288 1511424 1517568 1528398 1590528 1595392 1632384 1637376 1716096 1723072 1794816 1859104 1938456 1944384 2009088 2023424 2037864 2091492 2120704 2176512 2183168 2207686 2276352 2288128 2385792 2393088 2456064 2574144 2584608 2592512 2678784 2717152 2788656 2902016 2916576 3022848 3035136 3056796 3181056 3190784 3264768 3274752 3311529 3432192 3446144 3589632 3718208 3876912 3888768 4018176 4075728 4182984 4241408 4353024 4366336 4415372 4552704 4576256 4771584 4786176 4912128 5148288 5169216 5185024 5434304 5577312 5804032 5833152 6070272 6113592 6362112 6381568 6529536 6549504 6623058 6864384 6892288 7179264 7436416 7753824 7777536 8036352 8151456 8365968 8482816 8706048 8830744 9105408 9152512 9543168 9572352 9824256 9934587 10296576 10338432 10370048 10868608 11154624 11608064 11666304 12227184 12724224 13059072 13099008 13246116 13728768 13784576 14358528 14872832 15507648 15555072 16302912 16731936 16965632 17412096 17661488 18210816 18305024 19086336 19144704 19648512 19869174 20593152 20676864 20740096 21737216 22309248 23332608 24454368 25448448 26118144 26492232 27457536 27569152 28717056 29745664 31015296 31110144 32605824 33463872 34824192 35322976 36610048 38172672 39297024 39738348 41186304 41353728 41480192 43474432 44618496 46665216 48908736 50896896 52236288 52984464 54915072 55138304 57434112 59491328 62030592 62220288 65211648 66927744 70645952 76345344 79476696 82372608 82707456 82960384 86948864 89236992 93330432 97817472 104472576 105968928 109830144 110276608 118982656 124061184 124440576 130423296 133855488 141291904 152690688 158953392 164745216 165414912 173897728 178473984 186660864 195634944 211937856 220553216 237965312 248122368 248881152 260846592 267710976 282583808 317906784 329490432 330829824 347795456 356947968 373321728 391269888 423875712 475930624 496244736 521693184 535421952 565167616 635813568 661659648 695590912 713895936 746643456 782539776 847751424 992489472 1043386368 1070843904 1130335232 1271627136 1427791872 1565079552 1695502848 1984978944 2086772736 2141687808 2260670464 2543254272 3130159104 3391005696 4283375616 4521340928 5086508544 6260318208 6782011392 9042681856 10173017088 13564022784 20346034176 27128045568 40692068352 81384136704
• Sum of all divisors σ(n): 275509634400
• Sum of proper divisors (its aliquot sum) s(n): 194125497696
• 81384136704 is an abundant number, because the sum of its proper divisors (194125497696) is greater than itself. Its abundance is 112741360992

Bases of 81384136704

• Binary: 1001011110010110111110110000000000000₂
• Hexadecimal: 0x12F2DF6000
• Base-36: 11DY0HS0

Squares and roots of 81384136704

• 81384136704 squared (81384136704²) is 6623377707055359983616
• 81384136704 cubed (81384136704³) is 539037876753219482202535744241664
• The square root of 81384136704 is 285279.0505873153
• The cube root of 81384136704 is 4333.5776923399

Scales and comparisons

• 81,384,136,704 seconds is equal to 2,587 years, 39 weeks, 5 days, 38 minutes, 24 seconds.
• To count from 1 to 81,384,136,704 would take you about five thousand, one hundred seventy-five 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 81384136704 cubic inches would be around 361.1 feet tall.

Recreational maths with 81384136704

• 81384136704 backwards is 40763148318
• The number of decimal digits it has is: 11
• The sum of 81384136704's digits is 45
• More coming soon!