18018179631819405

Names of 18018179631819405

• Cardinal: 18018179631819405 can be written as Eighteen quadrillion, eighteen trillion, one hundred seventy-nine billion, six hundred thirty-one million, eight hundred nineteen thousand, four hundred five.

Scientific notation

• Scientific notation: 1.8018179631819405 × 10¹⁶

Factors of 18018179631819405

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 86933023

Divisors of 18018179631819405

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 9 15 45 277 831 1385 2493 4155 12465 16631 49893 83155 149679 249465 748395 4606787 13820361 23033935 41461083 69101805 86916107 207305415 260748321 434580535 782244963 1303741605 3911224815 24075761639 72227284917 120378808195 216681854751 361136424585 1083409273755 1445501775517 4336505326551 7227508877585 13009515979653 21682526632755 65047579898265 400403991818209 1201211975454627 2002019959091045 3603635926363881 6006059877273135 18018179631819405
• Sum of all divisors σ(n): 31346145549823104
• Sum of proper divisors (its aliquot sum) s(n): 13327965918003699
• 18018179631819405 is a deficient number, because the sum of its proper divisors (13327965918003699) is less than itself. Its deficiency is 4690213713815706

Bases of 18018179631819405

• Binary: 1000000000000110111000001011100011101000010101010001101₂
• Hexadecimal: 0x4003705C742A8D
• Base-36: 4XEWTG968P9

Squares and roots of 18018179631819405

• 18018179631819405 squared (18018179631819405²) is 324654797244511669122750534554025
• 18018179631819405 cubed (18018179631819405³) is 5849688455083518847265494404633222325831015855125
• The square root of 18018179631819405 is 134231813.0393067627
• The cube root of 18018179631819405 is 262162.3395741757

Scales and comparisons

• 18,018,179,631,819,405 seconds is equal to 572,922,378 years, 20 weeks, 6 days, 15 hours, 36 minutes, 45 seconds.
• To count from 1 to 18,018,179,631,819,405 would take you about one billion, seven hundred eighteen million, seven hundred sixty-seven thousand, one hundred thirty-five 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 18018179631819405 cubic inches would be around 21846.9 feet tall.

Recreational maths with 18018179631819405

• 18018179631819405 backwards is 50491813697181081
• The number of decimal digits it has is: 17
• The sum of 18018179631819405's digits is 72
• More coming soon!