18442374678

Names of 18442374678

• Cardinal: 18442374678 can be written as Eighteen billion, four hundred forty-two million, three hundred seventy-four thousand, six hundred seventy-eight.

Scientific notation

• Scientific notation: 1.8442374678 × 10¹⁰

Factors of 18442374678

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1555

Divisors of 18442374678

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 81 91 97 117 126 162 182 189 194 234 243 273 291 351 378 486 546 567 582 679 702 729 819 873 1053 1134 1261 1358 1433 1458 1638 1701 1746 2037 2106 2457 2522 2619 2866 3159 3402 3783 4074 4299 4914 5103 5238 6111 6318 7371 7566 7857 8598 8827 9477 10031 10206 11349 12222 12897 14742 15714 17654 18333 18629 18954 20062 22113 22698 23571 25794 26481 30093 34047 36666 37258 38691 44226 47142 52962 54999 55887 60186 66339 68094 70713 77382 79443 90279 102141 109998 111774 116073 130403 132678 139001 141426 158886 164997 167661 180558 204282 232146 238329 260806 270837 278002 306423 329994 335322 348219 391209 417003 476658 494991 502983 541674 612846 696438 714987 782418 812511 834006 919269 973007 989982 1005966 1044657 1173627 1251009 1429974 1508949 1625022 1807013 1838538 1946014 2089314 2144961 2347254 2437533 2502018 2919021 3017898 3520881 3614026 3753027 4289922 4526847 4875066 5421039 5838042 6434883 7041762 7312599 7506054 8757063 9053694 10562643 10842078 11259081 12649091 12869766 13580541 14625198 16263117 17514126 21125286 22518162 25298182 26271189 27161082 31687929 32526234 33777243 37947273 48789351 52542378 63375858 67554486 75894546 78813567 95063787 97578702 101331729 113841819 146368053 157627134 190127574 202663458 227683638 236440701 292736106 341525457 439104159 472881402 683050914 709322103 878208318 1024576371 1317312477 1418644206 2049152742 2634624954 3073729113 6147458226 9221187339 18442374678
• Sum of all divisors σ(n): 51610095936
• Sum of proper divisors (its aliquot sum) s(n): 33167721258
• 18442374678 is an abundant number, because the sum of its proper divisors (33167721258) is greater than itself. Its abundance is 14725346580

Bases of 18442374678

• Binary: 10001001011010000000100111000010110₂
• Hexadecimal: 0x44B404E16
• Base-36: 8H043DI

Squares and roots of 18442374678

• 18442374678 squared (18442374678²) is 340121183763735603684
• 18442374678 cubed (18442374678³) is 6272642306895702232068845113752
• The square root of 18442374678 is 135802.7049730601
• The cube root of 18442374678 is 2642.0373142601

Scales and comparisons

• 18,442,374,678 seconds is equal to 586 years, 21 weeks, 2 days, 9 hours, 51 minutes, 18 seconds.
• To count from 1 to 18,442,374,678 would take you about one thousand, one hundred seventy-two 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 18442374678 cubic inches would be around 220.2 feet tall.

Recreational maths with 18442374678

• 18442374678 backwards is 87647324481
• 18442374678 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18442374678's digits is 54
• More coming soon!