81590550426

Names of 81590550426

• Cardinal: 81590550426 can be written as Eighty-one billion, five hundred ninety million, five hundred fifty thousand, four hundred twenty-six.

Scientific notation

• Scientific notation: 8.1590550426 × 10¹⁰

Factors of 81590550426

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 70

Divisors of 81590550426

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 47 49 54 63 66 77 81 94 98 99 126 141 147 154 162 189 198 231 243 282 294 297 329 378 423 441 462 486 517 539 567 594 658 693 729 846 882 891 987 1034 1078 1134 1269 1323 1386 1458 1551 1617 1701 1782 1974 2079 2209 2303 2538 2646 2673 2961 3102 3234 3402 3619 3807 3969 4158 4418 4606 4653 4851 5103 5346 5922 6237 6627 6909 7238 7614 7938 8019 8883 9306 9702 10206 10857 11421 11907 12474 13254 13818 13959 14553 15463 16038 17766 18711 19881 20727 21714 22842 23814 24299 25333 26649 27918 29106 30926 32571 34263 35721 37422 39762 41454 41877 43659 46389 48598 50666 53298 56133 59643 62181 65142 68526 71442 72897 75999 79947 83754 87318 92778 97713 103823 108241 112266 119286 124362 125631 130977 139167 145794 151998 159894 170093 178929 186543 195426 207646 216482 218691 227997 239841 251262 261954 278334 293139 311469 324723 340186 357858 373086 376893 392931 417501 437382 455994 479682 510279 536787 559629 586278 622938 649446 656073 683991 726761 753786 785862 835002 879417 934407 974169 1020558 1073574 1119258 1142053 1190651 1252503 1312146 1367982 1453522 1530837 1610361 1678887 1758834 1868814 1948338 1968219 2051973 2180283 2284106 2381302 2505006 2638251 2803221 2922507 3061674 3220722 3357774 3426159 3571953 3757509 3936438 4103946 4360566 4592511 5087327 5276502 5606442 5845014 5904657 6155919 6540849 6852318 7143906 7515018 7994371 8409663 8767521 9185022 10174654 10278477 10715859 11272527 11809314 12311838 13081698 13777533 15261981 15988742 16819326 17535042 17713971 18467757 19622547 20556954 21431718 22545054 23983113 25228989 26302563 27555066 30523962 30835431 32147577 35427942 36935514 39245094 41332599 45785943 47966226 50457978 52605126 55960597 58867641 61670862 64295154 71949339 75686967 78907689 82665198 91571886 92506293 96442731 111921194 117735282 123997797 137357829 143898678 151373934 157815378 167881791 176602923 185012586 192885462 215848017 247995594 274715658 277518879 289328193 335763582 353205846 412073487 431696034 503645373 529808769 555037758 578656386 647544051 824146974 832556637 867984579 1007290746 1059617538 1236220461 1295088102 1510936119 1665113274 1735969158 1942632153 2472440922 3021872238 3708661383 3885264306 4532808357 5827896459 7417322766 9065616714 11655792918 13598425071 27196850142 40795275213 81590550426
• Sum of all divisors σ(n): 237920042880
• Sum of proper divisors (its aliquot sum) s(n): 156329492454
• 81590550426 is an abundant number, because the sum of its proper divisors (156329492454) is greater than itself. Its abundance is 74738942028

Bases of 81590550426

• Binary: 1001011111111001011001111111110011010₂
• Hexadecimal: 0x12FF2CFF9A
• Base-36: 11HCWNMI

Squares and roots of 81590550426

• 81590550426 squared (81590550426²) is 6657017918817648781476
• 81590550426 cubed (81590550426³) is 543149756192076947203775032708776
• The square root of 81590550426 is 285640.5965999931
• The cube root of 81590550426 is 4337.2383349653

Scales and comparisons

• 81,590,550,426 seconds is equal to 2,594 years, 17 weeks, 1 hour, 47 minutes, 6 seconds.
• To count from 1 to 81,590,550,426 would take you about five thousand, one hundred eighty-eight 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 81590550426 cubic inches would be around 361.4 feet tall.

Recreational maths with 81590550426

• 81590550426 backwards is 62405509518
• The number of decimal digits it has is: 11
• The sum of 81590550426's digits is 45
• More coming soon!