181997105472

Names of 181997105472

• Cardinal: 181997105472 can be written as One hundred eighty-one billion, nine hundred ninety-seven million, one hundred five thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.81997105472 × 10¹¹

Factors of 181997105472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 28295

Divisors of 181997105472

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 32 36 39 41 42 48 52 54 56 63 64 72 78 82 84 91 96 104 108 112 117 123 126 144 156 164 168 182 189 192 208 216 224 234 246 252 273 287 288 312 328 336 351 364 369 378 416 432 448 468 492 504 533 546 574 576 624 656 672 702 728 738 756 819 832 861 864 936 984 1008 1066 1092 1107 1148 1248 1312 1344 1404 1456 1476 1512 1599 1638 1722 1728 1872 1968 2016 2132 2184 2214 2296 2457 2496 2583 2624 2808 2912 2952 3024 3198 3276 3444 3731 3744 3936 4032 4264 4368 4428 4592 4797 4914 5166 5616 5824 5904 6048 6396 6552 6888 7462 7488 7749 7872 8528 8736 8856 9184 9594 9828 10332 11193 11232 11808 12096 12792 13104 13776 14391 14924 15498 17056 17472 17712 18368 19188 19656 20664 22386 22464 23616 25584 26208 27552 28229 28782 29848 30996 33579 34112 35424 38376 39312 41328 44772 51168 52416 55104 56458 57564 59696 61992 67158 70848 76752 78624 82656 84687 89544 100737 102336 112916 115128 119392 123984 134316 153504 157248 165312 169374 179088 197603 201474 225832 230256 238784 247968 254061 268632 307008 338748 358176 366977 395206 402948 451664 460512 495936 508122 537264 592809 677496 716352 733954 762183 790412 805896 903328 921024 1016244 1074528 1100931 1157389 1185618 1354992 1467908 1524366 1580824 1611792 1778427 1806656 2032488 2149056 2201862 2314778 2371236 2568839 2709984 2935816 3048732 3161648 3223584 3302793 3472167 3556854 4064976 4403724 4629556 4742472 5137678 5335281 5419968 5871632 6097464 6323296 6447168 6605586 6944334 7113708 7706517 8101723 8129952 8807448 9259112 9484944 9908379 10275356 10416501 10670562 11743264 12194928 12646592 13211172 13888668 14227416 15046057 15413034 16203446 16259904 17614896 18518224 18969888 19816758 20550712 20833002 21341124 23119551 23486528 24305169 24389856 26422344 27777336 28454832 30092114 30826068 31249503 32406892 35229792 37036448 37939776 39633516 41101424 41666004 42682248 45138171 46239102 48610338 48779712 52844688 55554672 56909664 60184228 61652136 62499006 64813784 69358653 70459584 72915507 74072896 79267032 82202848 83332008 85364496 90276342 92478204 97220676 105322399 105689376 111109344 113819328 120368456 123304272 124998012 129627568 135414513 138717306 145831014 158534064 164405696 166664016 170728992 180552684 184956408 194441352 210644798 211378752 218746521 222218688 240736912 246608544 249996024 259255136 270829026 277434612 291662028 315967197 317068128 333328032 341457984 361105368 369912816 388882704 406243539 421289596 437493042 481473824 493217088 499992048 518510272 541658052 554869224 583324056 631934394 634136256 666656064 722210736 739825632 777765408 812487078 842579192 874986084 947901591 962947648 999984096 1083316104 1109738448 1166648112 1263868788 1444421472 1479651264 1555530816 1624974156 1685158384 1749972168 1895803182 1999968192 2166632208 2219476896 2333296224 2527737576 2843704773 2888842944 3249948312 3370316768 3499944336 3791606364 4333264416 4438953792 4666592448 5055475152 5687409546 6499896624 6740633536 6999888672 7583212728 8666528832 10110950304 11374819092 12999793248 13999777344 15166425456 20221900608 22749638184 25999586496 30332850912 45499276368 60665701824 90998552736 181997105472
• Sum of all divisors σ(n): 674593113600
• Sum of proper divisors (its aliquot sum) s(n): 492596008128
• 181997105472 is an abundant number, because the sum of its proper divisors (492596008128) is greater than itself. Its abundance is 310598902656

Bases of 181997105472

• Binary: 10101001011111110111110111000101000000₂
• Hexadecimal: 0x2A5FDF7140
• Base-36: 2BLWDLC0

Squares and roots of 181997105472

• 181997105472 squared (181997105472²) is 33122946400186292342784
• 181997105472 cubed (181997105472³) is 6028280369538107367958285626114048
• The square root of 181997105472 is 426611.1877014011
• The cube root of 181997105472 is 5667.0210650109

Scales and comparisons

• 181,997,105,472 seconds is equal to 5,786 years, 49 weeks, 23 hours, 31 minutes, 12 seconds.
• To count from 1 to 181,997,105,472 would take you about eleven thousand, five hundred seventy-three 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 181997105472 cubic inches would be around 472.3 feet tall.

Recreational maths with 181997105472

• 181997105472 backwards is 274501799181
• 181997105472 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 181997105472's digits is 54
• More coming soon!