18381534444

Names of 18381534444

• Cardinal: 18381534444 can be written as Eighteen billion, three hundred eighty-one million, five hundred thirty-four thousand, four hundred forty-four.

Scientific notation

• Scientific notation: 1.8381534444 × 10¹⁰

Factors of 18381534444

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 73

Divisors of 18381534444

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 17 18 21 26 27 28 31 34 36 39 42 49 51 52 54 62 63 68 78 81 84 91 93 98 102 108 117 119 124 126 147 153 156 162 169 182 186 189 196 204 217 221 234 238 252 273 279 294 306 324 338 351 357 364 372 378 403 434 441 442 459 468 476 507 527 546 558 567 588 612 637 651 663 676 702 714 756 806 819 833 837 868 882 884 918 1014 1053 1054 1071 1092 1116 1134 1183 1209 1274 1302 1323 1326 1377 1404 1428 1519 1521 1547 1581 1612 1638 1666 1674 1764 1836 1911 1953 1989 2028 2106 2108 2142 2197 2268 2366 2418 2457 2499 2511 2548 2604 2646 2652 2754 2821 2873 3038 3042 3094 3162 3213 3276 3332 3348 3549 3627 3689 3822 3906 3969 3978 4212 4284 4394 4557 4563 4641 4732 4743 4836 4914 4998 5022 5239 5292 5508 5642 5733 5746 5859 5967 6076 6084 6188 6324 6426 6591 6851 7098 7254 7371 7378 7497 7644 7812 7938 7956 8281 8463 8619 8788 9114 9126 9282 9486 9639 9828 9996 10044 10478 10647 10829 10881 11067 11284 11466 11492 11718 11934 12852 13182 13671 13689 13702 13923 14196 14229 14508 14742 14756 14994 15379 15717 15876 16562 16926 17199 17238 17577 17901 18228 18252 18564 18972 19278 19747 19773 20111 20553 20956 21294 21658 21762 22134 22491 22932 23436 23868 24843 25389 25823 25857 26364 27342 27378 27404 27846 28458 29484 29988 30758 31434 31941 32487 32643 33124 33201 33852 34398 34476 35154 35802 36673 37349 38556 39494 39546 40222 41013 41106 41769 42588 42687 43316 43524 44268 44982 46137 47151 47957 49686 50778 51597 51646 51714 54684 54756 55692 56916 59241 59319 60333 61516 61659 62868 63882 64974 65286 66402 67473 68107 68796 70308 71604 73346 74529 74698 76167 77469 77571 78988 79092 80444 82026 82212 83538 85374 89063 89964 92274 94302 95823 95914 97461 99372 99603 101556 103194 103292 103428 107653 110019 112047 118482 118638 120666 123039 123318 125307 127764 129948 130572 132804 134946 136214 138411 140777 141453 143871 146692 149058 149396 152334 154938 155142 164052 167076 170748 177723 177957 178126 180999 184548 184977 188604 191646 191828 194922 199206 204321 206388 215306 220038 223587 224094 228501 232407 232713 236964 237276 241332 246078 246636 250614 256711 261443 267189 269892 272428 276822 281554 282906 287742 292383 298116 298809 304668 309876 310284 322959 330057 335699 336141 355446 355914 356252 361998 369954 383292 389844 398412 408642 415233 422331 424359 430612 431613 440076 447174 448188 457002 464814 465426 476749 492156 501228 513422 522886 533169 534378 542997 553644 554931 563108 565812 575484 584766 597618 612963 623441 645918 660114 670761 671398 672282 697221 710892 711828 723996 739908 770133 784329 801567 817284 830466 844662 848718 863226 877149 894348 914004 929628 930852 953498 968877 990171 1007097 1008423 1026844 1045772 1066338 1068756 1085994 1109862 1157819 1169532 1195236 1225926 1245699 1246882 1266993 1291836 1294839 1320228 1341522 1342796 1344564 1394442 1430247 1540266 1568658 1599507 1603134 1628991 1660932 1689324 1697436 1726452 1754298 1830101 1838889 1870323 1906996 1937754 1980342 2014194 2016846 2091663 2132676 2171988 2219724 2310399 2315638 2352987 2404701 2451852 2491398 2493764 2533986 2589678 2683044 2788884 2860494 2906631 2970513 3021291 3025269 3080532 3137316 3199014 3206268 3257982 3337243 3473457 3508596 3660202 3677778 3740646 3800979 3875508 3884517 3960684 4028388 4033692 4183326 4290741 4364087 4620798 4631276 4705974 4809402 4982796 5067972 5179356 5490303 5516667 5610969 5720988 5813262 5941026 6042582 6050538 6398028 6515964 6674486 6931197 6946914 7058961 7214103 7320404 7355556 7481292 7601958 7769034 8104733 8366652 8581482 8719893 8728174 9063873 9241596 9411948 9618804 10011729 10420371 10980606 11033334 11221938 11402937 11626524 11882052 12085164 12101076 12872223 13092261 13348972 13862394 13893828 14117922 14428206 15203916 15538068 16209466 16470909 16832907 17162964 17439786 17456348 18127746 20023458 20793591 20840742 21176883 21961212 22066668 22443876 22805874 24314199 25744446 26184522 27191619 27724788 28235844 28856412 30035187 31261113 32418932 32941818 33665814 34879572 36255492 38616669 39276783 40046916 41587182 41681484 42353766 45611748 48628398 49412727 50498721 51488892 52369044 54383238 56733131 60070374 62522226 65883636 67331628 72942597 77233338 78553566 83174364 84707532 90105561 93783339 97256796 98825454 100997442 108766476 113466262 117830349 120140748 125044452 145885194 148238181 154466676 157107132 170199393 180211122 187566678 197650908 201994884 218827791 226932524 235660698 270316683 291770388 296476362 340398786 353491047 360422244 375133356 437655582 471321396 510598179 540633366 592952724 656483373 680797572 706982094 875311164 1021196358 1081266732 1312966746 1413964188 1531794537 2042392716 2625933492 3063589074 4595383611 6127178148 9190767222 18381534444
• Sum of all divisors σ(n): 66184715520
• Sum of proper divisors (its aliquot sum) s(n): 47803181076
• 18381534444 is an abundant number, because the sum of its proper divisors (47803181076) is greater than itself. Its abundance is 29421646632

Bases of 18381534444

• Binary: 10001000111100111111111010011101100₂
• Hexadecimal: 0x4479FF4EC
• Base-36: 8FZW2R0

Squares and roots of 18381534444

• 18381534444 squared (18381534444²) is 337880808515958389136
• 18381534444 cubed (18381534444³) is 6210767719702657653574139400384
• The square root of 18381534444 is 135578.5176346165
• The cube root of 18381534444 is 2639.1288086157

Scales and comparisons

• 18,381,534,444 seconds is equal to 584 years, 24 weeks, 5 days, 5 hours, 47 minutes, 24 seconds.
• To count from 1 to 18,381,534,444 would take you about one thousand, one hundred sixty-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 18381534444 cubic inches would be around 219.9 feet tall.

Recreational maths with 18381534444

• 18381534444 backwards is 44443518381
• The number of decimal digits it has is: 11
• The sum of 18381534444's digits is 45
• More coming soon!