18312339738

Names of 18312339738

• Cardinal: 18312339738 can be written as Eighteen billion, three hundred twelve million, three hundred thirty-nine thousand, seven hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8312339738 × 10¹⁰

Factors of 18312339738

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 13120

Divisors of 18312339738

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 11 14 21 22 33 42 43 66 71 77 86 129 142 154 213 231 258 301 426 462 473 497 602 781 903 946 994 1419 1491 1562 1806 2343 2838 2982 3053 3311 4686 5467 6106 6622 9159 9933 10934 12983 16401 18318 19866 21371 25966 32802 33583 38949 42742 64113 67166 77898 90881 100749 128226 142813 181762 201498 235081 272643 285626 428439 470162 545286 558269 705243 856878 921793 999691 1116538 1410486 1674807 1843586 1999382 2765379 2999073 3349614 3907883 5530758 5998146 6140959 6452551 7815766 10139723 11723649 12281918 12905102 18422877 19357653 20279446 23447298 30419169 36845754 38715306 39637099 42986713 60838338 70978061 79274198 85973426 118911297 128960139 141956122 212934183 237822594 257920278 277459693 425868366 436008089 554919386 832379079 872016178 1308024267 1664758158 2616048534 3052056623 6104113246 9156169869 18312339738
• Sum of all divisors σ(n): 47385575424
• Sum of proper divisors (its aliquot sum) s(n): 29073235686
• 18312339738 is an abundant number, because the sum of its proper divisors (29073235686) is greater than itself. Its abundance is 10760895948

Bases of 18312339738

• Binary: 10001000011100000000010000100011010₂
• Hexadecimal: 0x44380211A
• Base-36: 8EUOZRU

Squares and roots of 18312339738

• 18312339738 squared (18312339738²) is 335341786679933908644
• 18312339738 cubed (18312339738³) is 6140892726030872802475182895272
• The square root of 18312339738 is 135323.0938827515
• The cube root of 18312339738 is 2635.8131013181

Scales and comparisons

• 18,312,339,738 seconds is equal to 582 years, 14 weeks, 2 days, 9 hours, 2 minutes, 18 seconds.
• To count from 1 to 18,312,339,738 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 18312339738 cubic inches would be around 219.7 feet tall.

Recreational maths with 18312339738

• 18312339738 backwards is 83793321381
• The number of decimal digits it has is: 11
• The sum of 18312339738's digits is 48
• More coming soon!