18231558813

Names of 18231558813

• Cardinal: 18231558813 can be written as Eighteen billion, two hundred thirty-one million, five hundred fifty-eight thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 1.8231558813 × 10¹⁰

Factors of 18231558813

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 108

Divisors of 18231558813

• Number of divisors d(n): 126
• Complete list of divisors:
  1 3 9 13 19 27 39 57 73 81 117 171 219 243 247 351 361 513 657 729 741 949 1053 1083 1387 1539 1971 2223 2847 3159 3249 4161 4617 4693 5329 5913 6669 8541 9477 9747 12483 13851 14079 15987 17739 18031 20007 25623 26353 29241 37449 42237 47961 53217 54093 60021 69277 76869 79059 87723 101251 112347 126711 143883 162279 180063 207831 230607 237177 263169 303753 337041 342589 380133 431649 486837 623493 691821 711531 911259 1011123 1027767 1140399 1294947 1316263 1460511 1870479 1923769 2134593 2733777 3083301 3421197 3884841 3948789 4381533 5611437 5771307 6403779 8201331 9249903 11846367 13144599 16834311 17313921 19211337 24603993 25008997 27749709 35539101 50502933 51941763 73811979 75026991 83249127 106617303 155825289 225080973 249747381 319851909 467475867 675242919 959555727 1402427601 2025728757 6077186271 18231558813
• Sum of all divisors σ(n): 31499824986
• Sum of proper divisors (its aliquot sum) s(n): 13268266173
• 18231558813 is a deficient number, because the sum of its proper divisors (13268266173) is less than itself. Its deficiency is 4963292640

Bases of 18231558813

• Binary: 10000111110101011111000001010011101₂
• Hexadecimal: 0x43EAF829D
• Base-36: 8DILKT9

Squares and roots of 18231558813

• 18231558813 squared (18231558813²) is 332389736751877968969
• 18231558813 cubed (18231558813³) is 6059983034429450779457312473797
• The square root of 18231558813 is 135024.2897148509
• The cube root of 18231558813 is 2631.9316151803

Scales and comparisons

• 18,231,558,813 seconds is equal to 579 years, 36 weeks, 5 days, 9 hours, 53 minutes, 33 seconds.
• To count from 1 to 18,231,558,813 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 18231558813 cubic inches would be around 219.3 feet tall.

Recreational maths with 18231558813

• 18231558813 backwards is 31885513281
• The number of decimal digits it has is: 11
• The sum of 18231558813's digits is 45
• More coming soon!