18994091004945

Names of 18994091004945

• Cardinal: 18994091004945 can be written as Eighteen trillion, nine hundred ninety-four billion, ninety-one million, four thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 1.8994091004945 × 10¹³

Factors of 18994091004945

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1331

Divisors of 18994091004945

• Number of divisors d(n): 512
• Complete list of divisors:
  1 3 5 7 9 15 21 27 35 45 49 53 63 73 97 105 135 147 159 189 219 245 265 291 315 343 365 371 441 477 485 511 657 679 735 795 873 945 1029 1093 1095 1113 1323 1431 1455 1533 1715 1855 1971 2037 2205 2385 2555 2597 2619 3087 3279 3285 3339 3395 3577 3869 4365 4599 4753 5141 5145 5465 5565 6111 6615 7081 7155 7651 7665 7791 9261 9837 9855 10017 10185 10731 11607 12985 13095 13797 14259 15423 15435 16395 16695 17885 18179 18333 19345 21243 22953 22995 23373 23765 25039 25705 27083 29511 30555 32193 33271 34821 35405 35987 38255 38955 42777 46269 46305 49185 49567 50085 53557 53655 54537 57929 58035 63729 68859 68985 70119 71295 75117 77115 79789 81249 90895 91665 96579 99813 104463 106021 106215 107961 114765 116865 125195 128331 135415 138807 147555 148701 160671 160965 163611 166355 173787 174105 179935 189581 191187 206577 213885 225351 231345 239367 243747 247835 251909 267785 272685 289645 299439 318063 318645 323883 344295 346969 350595 374899 375293 375585 398945 405503 406245 446103 482013 482895 490833 499065 521361 522315 530105 539805 558523 568743 641655 676053 694035 718101 731241 742147 743505 755727 803355 818055 868935 898317 947905 954189 955935 971649 1032885 1040907 1124697 1125879 1126755 1196835 1216509 1218735 1259545 1327067 1338309 1446039 1497195 1564083 1590315 1619415 1675569 1706229 1734845 1763363 1874495 1876465 2027515 2154303 2226441 2230515 2267181 2410065 2428783 2454165 2606805 2627051 2792615 2838521 2843715 2862567 3122721 3374091 3377637 3380265 3590505 3649527 3656205 3710735 3778635 3909661 3981201 4228817 4491585 4770945 4858245 5026707 5118687 5195029 5204535 5290089 5619113 5623485 5629395 6082545 6635335 6679323 6691545 6801543 7230195 7286349 7739533 7820415 7881153 8377845 8515563 8531145 8816815 9368163 10122273 10132911 10771515 10948581 11132205 11335905 11728983 11943603 12143915 12686451 13135255 14192605 14312835 15080121 15585087 15613605 15870267 16857339 16870455 16888185 18247635 18389357 19548305 19869647 19906005 20037969 21144085 21859047 23218599 23643459 25133535 25546689 25593435 25975145 26450445 27367627 28095565 29601719 33396615 34007715 35186949 35830809 36365203 36431745 38059353 38697665 39333791 39405765 42577815 46755261 46840815 47610801 50572017 50611365 50664555 54176731 54742905 55168071 58644915 59608941 59718015 63432255 65577141 69655797 70930377 75400605 76640067 77925435 79351335 82102881 84286695 88805157 91946785 99348235 100189845 105560847 109095609 109295235 114178059 116092995 118001373 118217295 127733445 128725499 136838135 140265783 148008595 151716051 162530193 165504213 175934745 178826823 179154045 181826015 190296765 196668955 207212033 208967391 233776305 238054005 246308643 252860085 266415471 270883655 275336537 275840355 298044705 327286827 327885705 348278985 354004119 354651885 379237117 383200335 386176497 410195249 410514405 444025785 487590579 496512639 527804235 536480469 545478045 570890295 590006865 621636099 643627495 701328915 738925929 758580255 799246413 812650965 826009611 827521065 894134115 981860481 1036060165 1044836955 1062012357 1137711351 1158529491 1230585747 1231543215 1332077355 1376682685 1450484231 1462771737 1636434135 1770020595 1864908297 1896185585 1927355759 1930882485 2050976245 2437952895 2478028833 2482563195 2654659819 2682402345 2871366743 3108180495 3413134053 3475588473 3691757241 3694629645 3996232065 4130048055 4351452693 4909302405 5310061785 5594724891 5688556755 5782067277 5792647455 6152928735 7252421155 7313858685 7434086499 7963979457 8614100229 9324541485 9636778795 10239402159 11075271723 12390144165 13054358079 13273299095 14356833715 17065670265 17346201831 17377942365 18458786205 20099567201 21757263465 23891938371 25842300687 27973624455 28910336385 37170432495 39163074237 39819897285 43070501145 51197010795 52038605493 55376358615 60298701603 65271790395 71675815113 77526902061 86731009155 100497836005 119459691855 129211503435 140696970407 180896104809 195815371185 260193027465 301493508015 358379075565 387634510305 422090911221 542688314427 703484852035 904480524045 1266272733663 2110454556105 2713441572135 3798818200989 6331363668315 18994091004945
• Sum of all divisors σ(n): 41128238592000
• Sum of proper divisors (its aliquot sum) s(n): 22134147587055
• 18994091004945 is an abundant number, because the sum of its proper divisors (22134147587055) is greater than itself. Its abundance is 3140056582110

Bases of 18994091004945

• Binary: 100010100011001101000000011000001010000010001₂
• Hexadecimal: 0x1146680C1411
• Base-36: 6QDRJDDE9

Squares and roots of 18994091004945

• 18994091004945 squared (18994091004945²) is 360775493104132560014453025
• 18994091004945 cubed (18994091004945³) is 6852602548373801134377417581346745208625
• The square root of 18994091004945 is 4358221.0826144421
• The cube root of 18994091004945 is 26681.2499596757

Scales and comparisons

• 18,994,091,004,945 seconds is equal to 603,953 years, 17 weeks, 5 days, 6 hours, 15 minutes, 45 seconds.
• To count from 1 to 18,994,091,004,945 would take you about one million, five hundred nine thousand, eight hundred eighty-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 18994091004945 cubic inches would be around 2223.4 feet tall.

Recreational maths with 18994091004945

• 18994091004945 backwards is 54940019049981
• 18994091004945 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18994091004945's digits is 63
• More coming soon!