18918143244

Names of 18918143244

• Cardinal: 18918143244 can be written as Eighteen billion, nine hundred eighteen million, one hundred forty-three thousand, two hundred forty-four.

Scientific notation

• Scientific notation: 1.8918143244 × 10¹⁰

Factors of 18918143244

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 677

Divisors of 18918143244

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 13 14 18 21 22 26 27 28 33 36 39 42 44 49 52 54 63 66 77 78 81 84 91 98 99 108 117 126 132 143 147 154 156 162 169 182 189 196 198 231 234 252 273 286 294 297 308 324 338 351 364 378 396 429 441 462 468 507 539 546 567 572 588 594 637 641 676 693 702 756 819 858 882 891 924 1001 1014 1053 1078 1092 1134 1183 1188 1274 1282 1287 1323 1386 1404 1521 1617 1638 1716 1764 1782 1859 1911 1923 2002 2028 2079 2106 2156 2268 2366 2457 2548 2564 2574 2646 2772 3003 3042 3234 3276 3549 3564 3718 3822 3846 3861 3969 4004 4158 4212 4487 4563 4732 4851 4914 5148 5292 5577 5733 5769 6006 6084 6237 6468 7007 7051 7098 7371 7436 7644 7692 7722 7938 8281 8316 8333 8974 9009 9126 9702 9828 10647 11154 11466 11538 11583 12012 12474 13013 13461 13689 14014 14102 14196 14553 14742 15444 15876 16562 16666 16731 17199 17307 17948 18018 18252 19404 21021 21153 21294 22308 22932 23076 23166 24843 24948 24999 26026 26922 27027 27378 28028 28204 29106 29484 31409 31941 33124 33332 33462 34398 34614 36036 39039 40383 42042 42306 42588 43659 46332 49357 49686 49998 50193 51597 51921 52052 53844 54054 54756 58212 58331 62818 63063 63459 63882 66924 68796 69228 74529 74997 78078 80766 81081 84084 84612 87318 91091 91663 94227 95823 98714 99372 99996 100386 103194 103842 108108 108329 116662 117117 121149 125636 126126 126918 127764 148071 149058 149994 150579 156156 161532 162162 174636 174993 182182 183326 188454 189189 190377 191646 197428 200772 206388 207684 216658 223587 224991 233324 234234 242298 252252 253836 273273 274989 282681 296142 298116 299988 301158 324324 324987 345499 349986 351351 363447 364364 366652 376908 378378 380754 383292 408317 433316 444213 447174 449982 468468 484596 524979 546546 549978 565362 567567 571131 592284 602316 641641 649974 670761 674973 690998 699972 702702 726894 756756 758303 761508 816634 819819 824967 848043 888426 894348 899964 974961 1036497 1049958 1054053 1093092 1099956 1130724 1135134 1142262 1191619 1224951 1283282 1299948 1332639 1341522 1349946 1381996 1405404 1453788 1516606 1574937 1633268 1639638 1649934 1696086 1776852 1924923 1949922 2072994 2099916 2108106 2270268 2274909 2284524 2383238 2449902 2459457 2474901 2544129 2566564 2665278 2683044 2699892 2924883 3033212 3109491 3149874 3279276 3299868 3392172 3574857 3674853 3849846 3899844 3997917 4145988 4216212 4491487 4549818 4724811 4766476 4899804 4918914 4949802 5088258 5308121 5330556 5774769 5849766 6218982 6299748 6824727 7149714 7349706 7378371 7424703 7699692 7995834 8341333 8774649 8982974 9099636 9328473 9449622 9837828 9899604 10176516 10616242 10724571 11024559 11549538 11699532 12437964 13474461 13649454 14299428 14699412 14756742 14849406 15924363 15991668 16682666 17324307 17549298 17965948 18656946 18899244 20474181 21232484 21449142 22049118 23099076 25023999 26948922 27298908 27985419 29513484 29698812 31848726 32173713 33073677 33365332 34648614 35098596 37313892 40423383 40948362 42898284 44098236 47773089 50047998 51972921 53897844 55970838 58389331 61422543 63697452 64347426 66147354 69297228 75071997 80846766 81896724 95546178 96521139 100095996 103945842 111941676 116778662 121270149 122845086 128694852 132294708 143319267 150143994 161693532 175167993 191092356 193042278 207891684 225215991 233557324 242540298 245690172 286638534 300287988 350335986 363810447 386084556 429957801 450431982 485080596 525503979 573277068 675647973 700671972 727620894 859915602 900863964 1051007958 1351295946 1455241788 1576511937 1719831204 2102015916 2702591892 3153023874 4729535811 6306047748 9459071622 18918143244
• Sum of all divisors σ(n): 68065279128
• Sum of proper divisors (its aliquot sum) s(n): 49147135884
• 18918143244 is an abundant number, because the sum of its proper divisors (49147135884) is greater than itself. Its abundance is 30228992640

Bases of 18918143244

• Binary: 10001100111100110111111010100001100₂
• Hexadecimal: 0x4679BF50C
• Base-36: 8OVDGR0

Squares and roots of 18918143244

• 18918143244 squared (18918143244²) is 357896143800502843536
• 18918143244 cubed (18918143244³) is 6770730514893135353243367470784
• The square root of 18918143244 is 137543.2413606715
• The cube root of 18918143244 is 2664.5640849573

Scales and comparisons

• 18,918,143,244 seconds is equal to 601 years, 27 weeks, 6 days, 23 hours, 47 minutes, 24 seconds.
• To count from 1 to 18,918,143,244 would take you about one thousand, two hundred 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 18918143244 cubic inches would be around 222 feet tall.

Recreational maths with 18918143244

• 18918143244 backwards is 44234181981
• The number of decimal digits it has is: 11
• The sum of 18918143244's digits is 45
• More coming soon!