18720425318868

Names of 18720425318868

• Cardinal: 18720425318868 can be written as Eighteen trillion, seven hundred twenty billion, four hundred twenty-five million, three hundred eighteen thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8720425318868 × 10¹³

Factors of 18720425318868

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 12916

Divisors of 18720425318868

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 52 54 63 78 84 91 108 117 126 156 182 189 234 252 273 277 351 364 378 468 546 554 571 702 756 819 831 1092 1108 1142 1404 1638 1662 1713 1939 2284 2457 2493 3276 3324 3426 3601 3878 3997 4914 4986 5139 5817 6852 7202 7423 7479 7756 7994 9828 9972 10278 10803 11634 11991 12043 14404 14846 14958 15417 15988 17451 20556 21606 22269 23268 23982 24086 25207 29692 29916 30834 32409 34902 35973 36129 43212 44538 47964 48172 50414 51961 52353 61668 64818 66807 69804 71946 72258 75621 84301 89076 97227 100828 103922 104706 107919 108387 129636 133614 143892 144516 151242 155883 156559 158167 168602 194454 200421 207844 209412 215838 216774 226863 252903 267228 302484 311766 313118 316334 325161 337204 388908 400842 431676 433548 453726 467649 469677 474501 505806 623532 626236 632668 650322 680589 758709 801684 907452 935298 939354 949002 1011612 1095913 1107169 1300644 1361178 1402947 1409031 1423503 1517418 1870596 1878708 1898004 2056171 2191826 2214338 2276127 2722356 2805894 2818062 2847006 3034836 3287739 3321507 3335911 4112342 4227093 4270509 4383652 4428676 4552254 5611788 5636124 5694012 6168513 6575478 6643014 6671822 6876553 8224684 8454186 8541018 9104508 9863217 9964521 10007733 12337026 13150956 13286028 13343644 13753106 14393197 16908372 17082036 18505539 19726434 19929042 20015466 20629659 23351377 24674052 27506212 28786394 29589651 29893563 30023199 37011078 39452868 39858084 40030932 41259318 43179591 43366843 46702754 48135871 55516617 57572788 59179302 59787126 60046398 61888977 70054131 74022156 82518636 86359182 86733686 89395189 90069597 93405508 96271742 111033234 118358604 119574252 120092796 123777954 129538773 130100529 140108262 144407613 172718364 173467372 178790378 180139194 185666931 192543484 210162393 222066468 247555908 259077546 260201058 268185567 280216524 288815226 303567901 357580756 360278388 371333862 388616319 390301587 420324786 433222839 518155092 520402116 536371134 577630452 607135802 625766323 630487179 742667724 777232638 780603174 804556701 840649572 866445678 910703703 1072742268 1170904761 1214271604 1251532646 1260974358 1299668517 1554465276 1561206348 1609113402 1732891356 1821407406 1877298969 1904805181 2341809522 2413670103 2503065292 2521948716 2599337034 2732111109 3218226804 3642814812 3754597938 3809610362 4683619044 4827340206 5198674068 5464222218 5631896907 5714415543 7509195876 7619220724 8196333327 9654680412 10928444436 11263793814 11428831086 13333636267 16392666654 16895690721 17143246629 22527587628 22857662172 24762467353 26667272534 32785333308 33791381442 34286493258 40000908801 49524934706 51429739887 53334545068 67582762884 68572986516 74287402059 80001817602 99049869412 102859479774 120002726403 148574804118 160003635204 173337271471 205718959548 222862206177 240005452806 297149608236 346674542942 360008179209 445724412354 480010905612 520011814413 668586618531 693349085884 720016358418 891448824708 1040023628826 1337173237062 1440032716836 1560035443239 2080047257652 2674346474124 3120070886478 4680106329717 6240141772956 9360212659434 18720425318868
• Sum of all divisors σ(n): 60060317757440
• Sum of proper divisors (its aliquot sum) s(n): 41339892438572
• 18720425318868 is an abundant number, because the sum of its proper divisors (41339892438572) is greater than itself. Its abundance is 22619467119704

Bases of 18720425318868

• Binary: 100010000011010110000010011010001100111010100₂
• Hexadecimal: 0x1106B04D19D4
• Base-36: 6MW1LVYL0

Squares and roots of 18720425318868

• 18720425318868 squared (18720425318868²) is 350454324119314059476801424
• 18720425318868 cubed (18720425318868³) is 6560654002349979325158435815133916468032
• The square root of 18720425318868 is 4326710.6812066831
• The cube root of 18720425318868 is 26552.4889732607

Scales and comparisons

• 18,720,425,318,868 seconds is equal to 595,251 years, 32 weeks, 1 day, 8 hours, 7 minutes, 48 seconds.
• To count from 1 to 18,720,425,318,868 would take you about one million, four hundred eighty-eight thousand, one hundred twenty-nine 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 18720425318868 cubic inches would be around 2212.7 feet tall.

Recreational maths with 18720425318868

• 18720425318868 backwards is 86881352402781
• 18720425318868 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18720425318868's digits is 63
• More coming soon!