18240842924728

Names of 18240842924728

• Cardinal: 18240842924728 can be written as Eighteen trillion, two hundred forty billion, eight hundred forty-two million, nine hundred twenty-four thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8240842924728 × 10¹³

Factors of 18240842924728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 704

Divisors of 18240842924728

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 103 206 412 599 824 1198 2396 4792 10609 21218 42436 61697 84872 123394 246788 358801 493576 717602 1435204 2870408 6354791 12709582 25419164 36956503 50838328 73913006 147826012 214921799 295652024 429843598 859687196 1719374392 3806519809 7613039618 15226079236 22136945297 30452158472 44273890594 88547781188 177095562376 2280105365591 4560210731182 9120421462364 18240842924728
• Sum of all divisors σ(n): 34594612434000
• Sum of proper divisors (its aliquot sum) s(n): 16353769509272
• 18240842924728 is a deficient number, because the sum of its proper divisors (16353769509272) is less than itself. Its deficiency is 1887073415456

Bases of 18240842924728

• Binary: 100001001011100000110111101101000001010111000₂
• Hexadecimal: 0x109706F682B8
• Base-36: 6GRQ6WUYG

Squares and roots of 18240842924728

• 18240842924728 squared (18240842924728²) is 332728350604599537073873984
• 18240842924728 cubed (18240842924728³) is 6069245579982326826927798389303869476352
• The square root of 18240842924728 is 4270929.9835899909
• The cube root of 18240842924728 is 26323.7829486117

Scales and comparisons

• 18,240,842,924,728 seconds is equal to 580,002 years, 19 weeks, 6 days, 4 hours, 25 minutes, 28 seconds.
• To count from 1 to 18,240,842,924,728 would take you about one million, four hundred fifty thousand and 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 18240842924728 cubic inches would be around 2193.6 feet tall.

Recreational maths with 18240842924728

• 18240842924728 backwards is 82742924804281
• The number of decimal digits it has is: 14
• The sum of 18240842924728's digits is 61
• More coming soon!