18318036438

Names of 18318036438

• Cardinal: 18318036438 can be written as Eighteen billion, three hundred eighteen million, thirty-six thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8318036438 × 10¹⁰

Factors of 18318036438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1562

Divisors of 18318036438

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 73 78 81 117 146 162 219 234 243 351 438 486 657 702 729 949 1053 1314 1458 1471 1898 1971 2106 2187 2847 2942 3159 3942 4374 4413 5694 5913 6318 6561 8541 8826 9477 11826 13122 13239 17082 17739 18954 19123 25623 26478 28431 35478 38246 39717 51246 53217 56862 57369 76869 79434 85293 106434 107383 114738 119151 153738 159651 170586 172107 214766 230607 238302 319302 322149 344214 357453 461214 478953 516321 644298 691821 714906 957906 966447 1032642 1072359 1383642 1395979 1548963 1932894 2075463 2144718 2791958 2899341 3097926 3217077 4150926 4187937 4646889 5798682 6226389 6434154 8375874 8698023 9293778 9651231 12452778 12563811 13940667 17396046 19302462 25127622 26094069 27881334 37691433 41822001 52188138 75382866 78282207 83644002 113074299 125466003 156564414 226148598 234846621 250932006 339222897 469693242 678445794 704539863 1017668691 1409079726 2035337382 3053006073 6106012146 9159018219 18318036438
• Sum of all divisors σ(n): 45022338816
• Sum of proper divisors (its aliquot sum) s(n): 26704302378
• 18318036438 is an abundant number, because the sum of its proper divisors (26704302378) is greater than itself. Its abundance is 8386265940

Bases of 18318036438

• Binary: 10001000011110101110000110111010110₂
• Hexadecimal: 0x443D70DD6
• Base-36: 8EY33DI

Squares and roots of 18318036438

• 18318036438 squared (18318036438²) is 335550458943895727844
• 18318036438 cubed (18318036438³) is 6146625533721904940318923179672
• The square root of 18318036438 is 135344.1407597685
• The cube root of 18318036438 is 2636.0863938985

Scales and comparisons

• 18,318,036,438 seconds is equal to 582 years, 23 weeks, 5 days, 7 hours, 27 minutes, 18 seconds.
• To count from 1 to 18,318,036,438 would take you about one thousand, one hundred sixty-four 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 18318036438 cubic inches would be around 219.7 feet tall.

Recreational maths with 18318036438

• 18318036438 backwards is 83463081381
• The number of decimal digits it has is: 11
• The sum of 18318036438's digits is 45
• More coming soon!