18231023538

Names of 18231023538

• Cardinal: 18231023538 can be written as Eighteen billion, two hundred thirty-one million, twenty-three thousand, five hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8231023538 × 10¹⁰

Factors of 18231023538

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 44807

Divisors of 18231023538

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 83 91 117 126 166 182 189 234 249 273 351 378 498 546 581 702 747 819 1079 1162 1494 1638 1743 2158 2241 2457 3237 3486 4482 4914 5229 6474 7553 9711 10458 15106 15687 19422 22659 29133 31374 44699 45318 58266 67977 89398 134097 135954 203931 268194 312893 402291 407862 581087 625786 804582 938679 1162174 1206873 1743261 1877358 2413746 2816037 3486522 3710017 4067609 5229783 5632074 7420034 8135218 8448111 10459566 11130051 12202827 15689349 16896222 22260102 24405654 25970119 31378698 33390153 36608481 48230221 51940238 66780306 73216962 77910357 96460442 100170459 109825443 144690663 155820714 200340918 219650886 233731071 289381326 337611547 434071989 467462142 675223094 701193213 868143978 1012834641 1302215967 1402386426 2025669282 2604431934 3038503923 6077007846 9115511769 18231023538
• Sum of all divisors σ(n): 50464512000
• Sum of proper divisors (its aliquot sum) s(n): 32233488462
• 18231023538 is an abundant number, because the sum of its proper divisors (32233488462) is greater than itself. Its abundance is 14002464924

Bases of 18231023538

• Binary: 10000111110101001110101011110110010₂
• Hexadecimal: 0x43EA757B2
• Base-36: 8DIA3SI

Squares and roots of 18231023538

• 18231023538 squared (18231023538²) is 332370219243110037444
• 18231023538 cubed (18231023538³) is 6059449290351359636965625356872
• The square root of 18231023538 is 135022.3075569367
• The cube root of 18231023538 is 2631.9058572623

Scales and comparisons

• 18,231,023,538 seconds is equal to 579 years, 35 weeks, 6 days, 5 hours, 12 minutes, 18 seconds.
• To count from 1 to 18,231,023,538 would take you about one thousand, one hundred fifty-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 18231023538 cubic inches would be around 219.3 feet tall.

Recreational maths with 18231023538

• 18231023538 backwards is 83532013281
• The number of decimal digits it has is: 11
• The sum of 18231023538's digits is 36
• More coming soon!