18538984674

Names of 18538984674

• Cardinal: 18538984674 can be written as Eighteen billion, five hundred thirty-eight million, nine hundred eighty-four thousand, six hundred seventy-four.

Scientific notation

• Scientific notation: 1.8538984674 × 10¹⁰

Factors of 18538984674

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1385

Divisors of 18538984674

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 49 54 63 81 98 126 147 162 189 243 294 343 378 441 486 567 686 729 882 1029 1134 1323 1373 1458 1701 2058 2187 2646 2746 3087 3402 3969 4119 4374 5103 6174 6561 7938 8238 9261 9611 10206 11907 12357 13122 15309 18522 19222 19683 23814 24714 27783 28833 30618 35721 37071 39366 45927 55566 57666 67277 71442 74142 83349 86499 91854 107163 111213 134554 137781 166698 172998 201831 214326 222426 250047 259497 275562 321489 333639 403662 470939 500094 518994 605493 642978 667278 750141 778491 941878 964467 1000917 1210986 1412817 1500282 1556982 1816479 1928934 2001834 2250423 2335473 2825634 3002751 3632958 4238451 4500846 4670946 5449437 6005502 6751269 7006419 8476902 9008253 10898874 12715353 13502538 14012838 16348311 18016506 21019257 25430706 27024759 32696622 38146059 42038514 49044933 54049518 63057771 76292118 98089866 114438177 126115542 147134799 189173313 228876354 294269598 343314531 378346626 441404397 686629062 882808794 1029943593 1324213191 2059887186 2648426382 3089830779 6179661558 9269492337 18538984674
• Sum of all divisors σ(n): 48679171200
• Sum of proper divisors (its aliquot sum) s(n): 30140186526
• 18538984674 is an abundant number, because the sum of its proper divisors (30140186526) is greater than itself. Its abundance is 11601201852

Bases of 18538984674

• Binary: 10001010001000000100111010011100010₂
• Hexadecimal: 0x4510274E2
• Base-36: 8ILMS4I

Squares and roots of 18538984674

• 18538984674 squared (18538984674²) is 343693952742806886276
• 18538984674 cubed (18538984674³) is 6371736922445377128412424934024
• The square root of 18538984674 is 136157.9401797781
• The cube root of 18538984674 is 2646.6427010211

Scales and comparisons

• 18,538,984,674 seconds is equal to 589 years, 25 weeks, 13 hours, 57 minutes, 54 seconds.
• To count from 1 to 18,538,984,674 would take you about one thousand, one hundred seventy-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 18538984674 cubic inches would be around 220.6 feet tall.

Recreational maths with 18538984674

• 18538984674 backwards is 47648983581
• 18538984674 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18538984674's digits is 63
• More coming soon!