81402123264

Names of 81402123264

• Cardinal: 81402123264 can be written as Eighty-one billion, four hundred two million, one hundred twenty-three thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 8.1402123264 × 10¹⁰

Factors of 81402123264

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 724

Divisors of 81402123264

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 17 21 22 24 28 31 32 33 34 42 44 48 51 56 62 64 66 68 77 84 88 93 96 102 112 119 124 128 132 136 154 168 176 186 187 192 204 217 224 231 238 248 256 264 272 308 336 341 352 357 372 374 384 408 434 448 462 476 496 512 527 528 544 561 616 651 653 672 682 704 714 744 748 768 816 868 896 924 952 992 1023 1024 1054 1056 1088 1122 1232 1302 1306 1309 1344 1364 1408 1428 1488 1496 1536 1581 1632 1736 1792 1848 1904 1959 1984 2046 2108 2112 2176 2244 2387 2464 2604 2612 2618 2688 2728 2816 2856 2976 2992 3072 3162 3264 3472 3584 3689 3696 3808 3918 3927 3968 4092 4216 4224 4352 4488 4571 4774 4928 5208 5224 5236 5376 5456 5632 5712 5797 5952 5984 6324 6528 6944 7161 7168 7183 7378 7392 7616 7836 7854 7936 8184 8432 8448 8704 8976 9142 9548 9856 10416 10448 10472 10752 10912 11067 11101 11264 11424 11594 11904 11968 12648 13056 13713 13888 14322 14366 14756 14784 15232 15672 15708 15872 16368 16864 16896 17391 17408 17952 18284 19096 19712 20243 20832 20896 20944 21504 21549 21824 22134 22202 22848 23188 23808 23936 25296 26112 27426 27776 28644 28732 29512 29568 30464 31344 31416 31744 32736 33303 33728 33792 34782 35904 36568 38192 39424 40486 40579 41664 41792 41888 43098 43648 44268 44404 45696 46376 47616 47872 50281 50592 52224 54852 55552 57288 57464 59024 59136 60729 60928 62688 62832 65472 66606 67456 69564 71808 73136 76384 77707 78848 80972 81158 83328 83584 83776 86196 87296 88536 88808 91392 92752 95232 95744 100562 101184 109704 111104 114576 114928 118048 118272 121458 121737 121856 122111 125376 125664 130944 133212 134912 139128 141701 143616 146272 150843 152768 155414 161944 162316 166656 167168 167552 172392 174592 177072 177616 182784 185504 191488 201124 202368 219408 222208 222673 229152 229856 233121 236096 236544 242916 243474 244222 250752 251328 261888 266424 269824 278256 283402 287232 292544 301686 305536 310828 323888 324632 333312 334336 335104 344131 344784 349184 354144 355232 365568 366333 371008 402248 404736 425103 438816 445346 458304 459712 466242 472192 485832 486948 488444 501504 502656 523776 532848 539648 556512 566804 574464 585088 603372 611072 621656 647776 649264 666624 668019 668672 670208 688262 689568 708288 710464 732666 742016 804496 809472 850206 854777 877632 890692 916608 919424 932484 944384 971664 973896 976888 1003008 1005312 1032393 1047552 1065696 1113024 1133608 1170176 1206744 1222144 1243312 1295552 1298528 1336038 1340416 1376524 1379136 1416576 1420928 1465332 1484032 1558711 1608992 1618944 1700412 1709554 1755264 1781384 1833216 1838848 1864968 1888768 1943328 1947792 1953776 2006016 2010624 2064786 2131392 2226048 2267216 2340352 2408917 2413488 2444288 2486624 2564331 2591104 2597056 2672076 2753048 2758272 2833152 2841856 2930664 2968064 3117422 3217984 3400824 3419108 3510528 3562768 3666432 3677696 3729936 3777536 3785441 3886656 3895584 3907552 4021248 4129572 4262784 4452096 4534432 4676133 4680704 4817834 4826976 4973248 5128662 5182208 5194112 5344152 5506096 5516544 5666304 5683712 5861328 5936128 6234844 6435968 6801648 6838216 7021056 7125536 7226751 7332864 7355392 7459872 7570882 7773312 7791168 7815104 8259144 8525568 8904192 9068864 9352266 9635668 9653952 9946496 10257324 10364416 10388224 10688304 11012192 11033088 11332608 11356323 11367424 11722656 12469688 12871936 13603296 13676432 14042112 14251072 14453502 14919744 15141764 15546624 15582336 15630208 16518288 17051136 17808384 18137728 18704532 19271336 19307904 19892992 20514648 20728832 20776448 21376608 22024384 22066176 22712646 23445312 24939376 25743872 26498087 27206592 27352864 28502144 28907004 29839488 30283528 31093248 31164672 31260416 33036576 34102272 36275456 37409064 38542672 38615808 39785984 41029296 41552896 42753216 44048768 45425292 46890624 49878752 51487744 52996174 54413184 54705728 57004288 57814008 59678976 60567056 62186496 62329344 62520832 66073152 72550912 74818128 77085344 77231616 79494261 79571968 82058592 85506432 88097536 90850584 93781248 99757504 105992348 108826368 109411456 114008576 115628016 119357952 121134112 124658688 125041664 132146304 145101824 149636256 154170688 154463232 158988522 164117184 171012864 176195072 181701168 187562496 199515008 211984696 217652736 218822912 228017152 231256032 238715904 242268224 264292608 299272512 308341376 317977044 328234368 342025728 352390144 363402336 375124992 399030016 423969392 435305472 437645824 462512064 484536448 528585216 598545024 616682752 635954088 656468736 684051456 726804672 798060032 847938784 875291648 925024128 969072896 1057170432 1197090048 1233365504 1271908176 1312937472 1453609344 1596120064 1695877568 1850048256 1938145792 2394180096 2466731008 2543816352 2625874944 2907218688 3391755136 3700096512 3876291584 4788360192 5087632704 5814437376 6783510272 7400193024 10175265408 11628874752 13567020544 20350530816 27134041088 40701061632 81402123264
• Sum of all divisors σ(n): 296107425792
• Sum of proper divisors (its aliquot sum) s(n): 214705302528
• 81402123264 is an abundant number, because the sum of its proper divisors (214705302528) is greater than itself. Its abundance is 133303179264

Bases of 81402123264

• Binary: 1001011110011111100011101010000000000₂
• Hexadecimal: 0x12F3F1D400
• Base-36: 11E8Q0AO

Squares and roots of 81402123264

• 81402123264 squared (81402123264²) is 6626305671887450013696
• 81402123264 cubed (81402123264³) is 539395351087924545549520280223744
• The square root of 81402123264 is 285310.5733477119
• The cube root of 81402123264 is 4333.8969208643

Scales and comparisons

• 81,402,123,264 seconds is equal to 2,588 years, 17 weeks, 3 days, 4 hours, 54 minutes, 24 seconds.
• To count from 1 to 81,402,123,264 would take you about five thousand, one hundred seventy-six 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 81402123264 cubic inches would be around 361.2 feet tall.

Recreational maths with 81402123264

• 81402123264 backwards is 46232120418
• 81402123264 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81402123264's digits is 33
• More coming soon!