18499397994

Names of 18499397994

• Cardinal: 18499397994 can be written as Eighteen billion, four hundred ninety-nine million, three hundred ninety-seven thousand, nine hundred ninety-four.

Scientific notation

• Scientific notation: 1.8499397994 × 10¹⁰

Factors of 18499397994

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 133

Divisors of 18499397994

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 6 7 9 11 14 17 18 19 21 22 31 33 34 38 42 43 51 57 62 63 66 77 86 93 99 102 114 119 126 129 133 153 154 171 186 187 198 209 217 231 238 258 266 279 301 306 323 341 342 357 374 387 399 418 434 462 473 527 558 561 589 602 627 646 651 682 693 714 731 774 798 817 903 946 961 969 1023 1054 1071 1122 1178 1197 1254 1302 1309 1333 1386 1419 1462 1463 1581 1634 1683 1767 1806 1881 1922 1938 1953 2046 2142 2193 2261 2387 2394 2451 2618 2666 2709 2838 2883 2907 2926 3069 3162 3311 3366 3534 3553 3689 3762 3906 3927 3999 4123 4257 4386 4389 4522 4743 4774 4902 5117 5301 5418 5719 5766 5797 5814 6138 6479 6579 6622 6727 6783 7106 7161 7353 7378 7854 7998 8041 8246 8514 8649 8778 8987 9331 9486 9933 10013 10234 10571 10602 10659 11067 11438 11594 11781 11997 12369 12958 13158 13167 13454 13566 13889 14322 14663 14706 15351 16082 16337 17157 17298 17391 17974 18259 18662 19437 19866 20026 20181 20349 21142 21318 21483 22134 22661 23562 23994 24123 24738 24871 25327 26334 26961 27778 27993 29326 29799 30039 30702 31713 31977 32674 33201 34314 34782 36518 37107 38874 40362 40579 40698 41323 41667 42966 43989 45322 45353 46053 48246 49011 49742 50654 51471 52173 53922 54777 55986 56287 58311 59598 60078 60543 62909 63426 63954 66402 67983 70091 72369 73997 74214 74613 75981 80883 81158 82646 83334 83979 87978 90117 90706 92106 95139 97223 98022 102641 102942 104346 109554 110143 112574 114359 116622 121086 121737 123969 125001 125818 127813 131967 135966 136059 140182 144738 147033 147994 149226 151962 152779 158627 161766 164331 167958 168861 177289 179707 180234 188727 190278 194446 200849 203949 205282 210273 220286 221991 223839 227943 228718 243474 247938 249271 250002 255626 263934 272118 278597 289261 291669 294066 305558 307923 310403 317254 328662 330429 337722 343077 354578 359414 365211 371907 377454 383439 401698 407898 408177 420546 430559 443982 447678 454553 455886 458337 475881 498542 506583 531867 539121 557194 566181 578522 583338 602547 615846 620806 630819 660858 665973 686154 702491 730422 743814 747813 766878 771001 785137 816354 835791 861118 867783 875007 909106 916674 923769 931209 951762 991287 1013166 1029231 1063734 1069453 1078242 1132362 1150317 1205094 1257949 1261638 1291677 1331946 1363659 1375011 1404982 1405943 1427643 1495626 1542002 1570274 1595601 1617363 1671582 1735566 1744897 1750014 1807641 1847538 1862418 1950179 1982574 2058462 2107473 2138906 2172821 2243439 2300634 2313003 2355411 2507373 2515898 2583354 2603349 2727318 2750022 2793627 2811886 2855286 3013913 3181871 3191202 3208359 3234726 3414433 3489794 3615282 3773847 3875031 3900358 4090977 4214946 4217829 4345642 4486878 4626006 4710822 4736149 4917437 5014746 5206698 5234691 5495959 5587254 5850537 6027826 6322419 6363742 6416718 6518463 6828866 6939009 7066233 7547694 7727401 7750062 8181954 8435658 8636507 9041739 9472298 9545613 9625077 9834874 10243299 10469382 10991918 11321541 11701074 12644838 12653487 13036926 13347329 13878018 14132466 14208447 14752311 15454802 15704073 16487877 17273014 17551611 18083478 19091226 19250154 19555389 20486598 22643082 23182203 23901031 25306974 25909521 26694658 27125217 28416894 28636839 29504622 30729897 31408146 32975754 33153043 35103222 39110778 40041987 42625341 44256933 46364406 47802062 49463631 51819042 54091807 54250434 57273678 60455549 61459794 66306086 69546609 71703093 77728563 80083974 85250682 88513866 93431303 98927262 99459129 108183614 120125961 120911098 139093218 143406186 146820619 155457126 162275421 181366647 186862606 198918258 215109279 240251922 280293909 293641238 298377387 324550842 362733294 430218558 440461857 486826263 544099941 560587818 596754774 840881727 880923714 973652526 1027744333 1088199882 1321385571 1681763454 2055488666 2642771142 3083232999 6166465998 9249698997 18499397994
• Sum of all divisors σ(n): 58889825280
• Sum of proper divisors (its aliquot sum) s(n): 40390427286
• 18499397994 is an abundant number, because the sum of its proper divisors (40390427286) is greater than itself. Its abundance is 21891029292

Bases of 18499397994

• Binary: 10001001110101001100110100101101010₂
• Hexadecimal: 0x44EA6696A
• Base-36: 8HY2AUI

Squares and roots of 18499397994

• 18499397994 squared (18499397994²) is 342227726140411224036
• 18499397994 cubed (18499397994³) is 6331006910453104760266662983784
• The square root of 18499397994 is 136012.4920512819
• The cube root of 18499397994 is 2644.7575481589

Scales and comparisons

• 18,499,397,994 seconds is equal to 588 years, 11 weeks, 4 days, 9 hours, 39 minutes, 54 seconds.
• To count from 1 to 18,499,397,994 would take you about one 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 18499397994 cubic inches would be around 220.4 feet tall.

Recreational maths with 18499397994

• 18499397994 backwards is 49979399481
• The number of decimal digits it has is: 11
• The sum of 18499397994's digits is 72
• More coming soon!