18394387536

Names of 18394387536

• Cardinal: 18394387536 can be written as Eighteen billion, three hundred ninety-four million, three hundred eighty-seven thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 1.8394387536 × 10¹⁰

Factors of 18394387536

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 163

Divisors of 18394387536

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 151 168 196 294 302 336 343 392 453 588 604 686 784 906 1029 1057 1176 1208 1372 1812 2058 2114 2352 2401 2416 2744 3171 3624 4116 4228 4802 5488 6342 7203 7248 7399 8232 8456 9604 12684 14406 14798 16464 16807 16912 19208 22197 22801 25368 28812 29596 33614 38416 44394 45602 50421 50736 51793 57624 59192 67228 68403 88788 91204 100842 103586 115248 118384 134456 136806 155379 159607 177576 182408 201684 207172 268912 273612 310758 319214 355152 362551 364816 403368 414344 478821 547224 621516 638428 725102 806736 828688 957642 1087653 1094448 1117249 1243032 1276856 1450204 1915284 2175306 2234498 2486064 2537857 2553712 2900408 3351747 3830568 4350612 4468996 5075714 5800816 6703494 7613571 7661136 7820743 8701224 8937992 10151428 13406988 15227142 15641486 17402448 17875984 20302856 23462229 26813976 30454284 31282972 40605712 46924458 53627952 54745201 60908568 62565944 93848916 109490402 121817136 125131888 164235603 187697832 218980804 328471206 375395664 383216407 437961608 656942412 766432814 875923216 1149649221 1313884824 1532865628 2299298442 2627769648 3065731256 4598596884 6131462512 9197193768 18394387536
• Sum of all divisors σ(n): 55807740576
• Sum of proper divisors (its aliquot sum) s(n): 37413353040
• 18394387536 is an abundant number, because the sum of its proper divisors (37413353040) is greater than itself. Its abundance is 19018965504

Bases of 18394387536

• Binary: 10001001000011001000001010001010000₂
• Hexadecimal: 0x448641450
• Base-36: 8G7JK9C

Squares and roots of 18394387536

• 18394387536 squared (18394387536²) is 338353492824552151296
• 18394387536 cubed (18394387536³) is 6223805271174007526581128646656
• The square root of 18394387536 is 135625.9102679131
• The cube root of 18394387536 is 2639.7437928591

Scales and comparisons

• 18,394,387,536 seconds is equal to 584 years, 46 weeks, 5 minutes, 36 seconds.
• To count from 1 to 18,394,387,536 would take you about one thousand, one hundred sixty-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 18394387536 cubic inches would be around 220 feet tall.

Recreational maths with 18394387536

• 18394387536 backwards is 63578349381
• The number of decimal digits it has is: 11
• The sum of 18394387536's digits is 57
• More coming soon!