71981793664

Names of 71981793664

• Cardinal: 71981793664 can be written as Seventy-one billion, nine hundred eighty-one million, seven hundred ninety-three thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 7.1981793664 × 10¹⁰

Factors of 71981793664

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 206

Divisors of 71981793664

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 8 11 16 19 22 29 31 32 38 41 44 58 62 64 73 76 82 88 116 124 128 146 152 164 176 209 232 248 292 304 319 328 341 352 418 451 464 496 551 584 589 608 638 656 682 704 779 803 836 899 902 928 992 1102 1168 1178 1189 1216 1271 1276 1312 1364 1387 1408 1558 1606 1672 1798 1804 1856 1984 2117 2204 2263 2336 2356 2378 2432 2542 2552 2624 2728 2774 2993 3116 3212 3344 3596 3608 3712 3968 4234 4408 4526 4672 4712 4756 5084 5104 5248 5456 5548 5986 6061 6232 6424 6479 6688 7192 7216 8468 8569 8816 9052 9344 9424 9512 9889 10168 10208 10912 11096 11972 12122 12464 12848 12958 13079 13376 13981 14384 14432 15257 16936 17081 17138 17632 18104 18848 19024 19778 20336 20416 21824 22192 22591 23287 23944 24149 24244 24893 24928 25696 25916 26158 26752 27962 28768 28864 30514 32923 33872 34162 34276 35264 36208 36859 37696 38048 39556 40223 40672 40832 42997 43648 44384 45182 46574 47888 48298 48488 49786 49856 51392 51832 52316 55924 56867 57536 57728 61028 65627 65846 67744 68324 68552 70528 72416 73718 75392 76096 79112 80446 81344 85994 86797 88768 90364 92783 93148 95776 96596 96976 99572 99712 102784 103664 104632 111848 113734 115072 122056 131254 131692 135488 136648 137104 144832 147436 152192 158224 160892 162688 171988 173594 177536 180728 185566 186296 187891 191552 193192 193952 199144 207328 209264 223696 227468 244112 248501 262508 263384 265639 270976 273296 274208 289664 294872 316448 321784 343976 347188 361456 371132 372592 375782 383104 386384 387904 398288 405449 414656 418528 442453 447392 454936 472967 488224 497002 525016 526768 531278 546592 548416 589744 625537 632896 643568 687952 694376 700321 721897 722912 742264 745184 751564 772768 775808 796576 810898 829312 837056 884906 894784 909872 945934 954767 976448 994004 1020613 1050032 1053536 1062556 1093184 1096832 1179488 1246913 1251074 1265792 1287136 1375904 1388752 1400642 1443794 1445824 1484528 1490368 1503128 1545536 1593152 1621796 1649143 1674112 1762877 1769812 1789568 1819744 1891868 1909534 1952896 1988008 2041226 2100064 2107072 2125112 2186368 2358976 2493826 2502148 2574272 2690707 2751808 2777504 2801284 2887588 2891648 2969056 2980736 3006256 3091072 3186304 3243592 3298286 3525754 3539624 3639488 3783736 3819068 3976016 4082452 4200128 4214144 4250224 4717952 4987652 5004296 5148544 5381414 5503616 5555008 5602568 5775176 5938112 6012512 6487184 6596572 7051508 7079248 7278976 7567472 7638136 7703531 7952032 8164904 8400256 8500448 9975304 10008592 10762828 11110016 11205136 11550352 11876224 12025024 12974368 13193144 13716043 14103016 14158496 15134944 15276272 15407062 15904064 16329808 17000896 18140573 19391647 19950608 20017184 21525656 22410272 23100704 24050048 25948736 26386288 27432086 28206032 28316992 29597777 30269888 30552544 30814124 31808128 32659616 34001792 36281146 38783294 39901216 40034368 43051312 44820544 46201408 51123433 51897472 52772576 54864172 56412064 56633984 59195554 60539776 61105088 61628248 65319232 72562292 77566588 79802432 80068736 86102624 89641088 92402816 102246866 105545152 109728344 112824128 118391108 122210176 123256496 130638464 145124584 155133176 159604864 172205248 204493732 211090304 219456688 225648256 236782216 246512992 290249168 310266352 344410496 408987464 438913376 473564432 493025984 562357763 580498336 620532704 817974928 877826752 947128864 986051968 1124715526 1160996672 1241065408 1635949856 1755653504 1894257728 2249431052 2321993344 2482130816 3271899712 3788515456 4498862104 6543799424 8997724208 17995448416 35990896832 71981793664
• Sum of all divisors σ(n): 182601216000
• Sum of proper divisors (its aliquot sum) s(n): 110619422336
• 71981793664 is an abundant number, because the sum of its proper divisors (110619422336) is greater than itself. Its abundance is 38637628672

Bases of 71981793664

• Binary: 1000011000010011100110000000110000000₂
• Hexadecimal: 0x10C2730180
• Base-36: X2G3NGG

Squares and roots of 71981793664

• 71981793664 squared (71981793664²) is 5181378619086670544896
• 71981793664 cubed (71981793664³) is 372964926654157971295450320338944
• The square root of 71981793664 is 268294.2296509561
• The cube root of 71981793664 is 4159.8169618677

Scales and comparisons

• 71,981,793,664 seconds is equal to 2,288 years, 41 weeks, 3 days, 14 hours, 41 minutes, 4 seconds.
• To count from 1 to 71,981,793,664 would take you about four thousand, five hundred seventy-seven 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 71981793664 cubic inches would be around 346.7 feet tall.

Recreational maths with 71981793664

• 71981793664 backwards is 46639718917
• The number of decimal digits it has is: 11
• The sum of 71981793664's digits is 61
• More coming soon!