18137891581992

Names of 18137891581992

• Cardinal: 18137891581992 can be written as Eighteen trillion, one hundred thirty-seven billion, eight hundred ninety-one million, five hundred eighty-one thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.8137891581992 × 10¹³

Factors of 18137891581992

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 131091

Divisors of 18137891581992

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 27 28 36 39 42 52 54 56 63 72 78 81 84 91 104 108 117 126 156 162 168 182 189 216 234 243 252 273 312 324 351 364 378 468 486 504 546 567 648 702 728 756 787 819 936 972 1053 1092 1134 1404 1512 1574 1638 1701 1944 2106 2184 2268 2361 2457 2808 3148 3159 3276 3402 4212 4536 4722 4914 5509 6296 6318 6552 6804 7083 7371 8424 9444 9828 10231 11018 12636 13608 14166 14742 16527 18888 19656 20462 21249 22036 22113 25272 28332 29484 30693 33054 40924 42498 44072 44226 49581 56664 58968 61386 63747 66108 71617 81848 84996 88452 92079 99162 122772 127494 130279 132216 143234 148743 169992 176904 184158 191241 198324 214851 245544 254988 260558 276237 286468 297486 368316 382482 390837 396648 429702 446229 509976 521116 552474 572936 594972 644553 736632 764964 781674 828711 859404 892458 911953 1042232 1104948 1172511 1189944 1289106 1338687 1529928 1563348 1657422 1693627 1718808 1784916 1823906 1933659 2209896 2345022 2486133 2578212 2677374 2735859 3126696 3314844 3387254 3517533 3569832 3647812 3867318 4690044 4972266 5080881 5156424 5354748 5471718 5800977 6629688 6774508 7035066 7295624 7734636 8207577 9380088 9944532 10161762 10552599 10709496 10943436 11601954 11855389 13549016 14070132 15242643 15469272 16415154 17402931 19889064 20323524 21105198 21886872 23203908 23710778 24622731 28140264 30485286 31657797 32830308 34805862 35566167 40647048 42210396 45727929 46407816 47421556 49245462 60970572 63315594 65660616 69611724 71132334 73868193 84420792 91455858 94843112 98490924 102529573 106698501 121941144 126631188 137183787 139223448 142264668 147736386 182911716 196981848 205059146 213397002 221604579 253262376 274367574 284529336 295472772 307588719 320095503 365823432 410118292 411551361 426794004 443209158 548735148 590945544 615177438 640191006 717707011 820236584 823102722 853588008 886418316 922766157 960286509 1097470296 1230354876 1280382012 1332884449 1435414022 1646205444 1772836632 1845532314 1920573018 2153121033 2460709752 2560764024 2665768898 2768298471 2870828044 2880859527 3292410888 3691064628 3841146036 3998653347 4306242066 5331537796 5536596942 5741656088 5761719054 6459363099 7382129256 7682292072 7997306694 8304895413 8612484132 9330191143 10663075592 11073193884 11523438108 11995960041 12918726198 15994613388 16609790826 17224968264 18660382286 19378089297 22146387768 23046876216 23991920082 24914686239 25837452396 27990573429 31989226776 33219581652 35987880123 37320764572 38756178594 47983840164 49829372478 51674904792 55981146858 58134267891 66439163304 71975760246 74641529144 77512357188 83971720287 95967680328 99658744956 107963640369 111962293716 116268535782 143951520492 155024714376 167943440574 174402803673 199317489912 215927280738 223924587432 232537071564 251915160861 287903040984 323890921107 335886881148 348805607346 431854561476 465074143128 503830321722 647781842214 671773762296 697611214692 755745482583 863709122952 1007660643444 1295563684428 1395222429384 1511490965166 2015321286888 2267236447749 2591127368856 3022981930332 4534472895498 6045963860664 9068945790996 18137891581992
• Sum of all divisors σ(n): 62779034572800
• Sum of proper divisors (its aliquot sum) s(n): 44641142990808
• 18137891581992 is an abundant number, because the sum of its proper divisors (44641142990808) is greater than itself. Its abundance is 26503251408816

Bases of 18137891581992

• Binary: 100000111111100001110100101011011000000101000₂
• Hexadecimal: 0x107F0E95B028
• Base-36: 6FGFKCAI0

Squares and roots of 18137891581992

• 18137891581992 squared (18137891581992²) is 328983111040096256458688064
• 18137891581992 cubed (18137891581992³) is 5967060000351701289603430596737807743488
• The square root of 18137891581992 is 4258860.3618799243
• The cube root of 18137891581992 is 26274.1656620485

Scales and comparisons

• 18,137,891,581,992 seconds is equal to 576,728 years, 44 weeks, 17 hours, 13 minutes, 12 seconds.
• To count from 1 to 18,137,891,581,992 would take you about one million, four hundred forty-one thousand, eight hundred twenty-two 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 18137891581992 cubic inches would be around 2189.5 feet tall.

Recreational maths with 18137891581992

• 18137891581992 backwards is 29918519873181
• 18137891581992 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18137891581992's digits is 72
• More coming soon!