18347172490

Names of 18347172490

• Cardinal: 18347172490 can be written as Eighteen billion, three hundred forty-seven million, one hundred seventy-two thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.834717249 × 10¹⁰

Factors of 18347172490

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2063

Divisors of 18347172490

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 43 73 86 146 215 365 373 430 730 746 1567 1865 3134 3139 3730 6278 7835 15670 15695 16039 27229 31390 32078 54458 67381 80195 114391 134762 136145 160390 228782 272290 336905 571955 584491 673810 1143910 1168982 1170847 2341694 2922455 4918813 5844910 5854235 9837626 11708470 24594065 25133113 42667843 49188130 50266226 85335686 125665565 213339215 251331130 426678430 1834717249 3669434498 9173586245 18347172490
• Sum of all divisors σ(n): 34369606656
• Sum of proper divisors (its aliquot sum) s(n): 16022434166
• 18347172490 is a deficient number, because the sum of its proper divisors (16022434166) is less than itself. Its deficiency is 2324738324

Bases of 18347172490

• Binary: 10001000101100100111010001010001010₂
• Hexadecimal: 0x44593A28A
• Base-36: 8FFFKWA

Squares and roots of 18347172490

• 18347172490 squared (18347172490²) is 336618738377812800100
• 18347172490 cubed (18347172490³) is 6176002056383914232364589249000
• The square root of 18347172490 is 135451.7349095241
• The cube root of 18347172490 is 2637.4832769691

Scales and comparisons

• 18,347,172,490 seconds is equal to 583 years, 19 weeks, 6 days, 12 hours, 48 minutes, 10 seconds.
• To count from 1 to 18,347,172,490 would take you about one thousand, one hundred sixty-six 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 18347172490 cubic inches would be around 219.8 feet tall.

Recreational maths with 18347172490

• 18347172490 backwards is 09427174381
• The number of decimal digits it has is: 11
• The sum of 18347172490's digits is 46
• More coming soon!