18385732944

Names of 18385732944

• Cardinal: 18385732944 can be written as Eighteen billion, three hundred eighty-five million, seven hundred thirty-two thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 1.8385732944 × 10¹⁰

Factors of 18385732944

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 42559572

Divisors of 18385732944

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 42559567 85119134 127678701 170238268 255357402 340476536 383036103 510714804 680953072 766072206 1021429608 1149108309 1532144412 2042859216 2298216618 3064288824 4596433236 6128577648 9192866472 18385732944
• Sum of all divisors σ(n): 52773864320
• Sum of proper divisors (its aliquot sum) s(n): 34388131376
• 18385732944 is an abundant number, because the sum of its proper divisors (34388131376) is greater than itself. Its abundance is 16002398432

Bases of 18385732944

• Binary: 10001000111111000000000010101010000₂
• Hexadecimal: 0x447E00550
• Base-36: 8G2E2C0

Squares and roots of 18385732944

• 18385732944 squared (18385732944²) is 338035175888086907136
• 18385732944 cubed (18385732944³) is 6215024469556433905665423888384
• The square root of 18385732944 is 135594.0003982477
• The cube root of 18385732944 is 2639.3297265317

Scales and comparisons

• 18,385,732,944 seconds is equal to 584 years, 31 weeks, 4 days, 20 hours, 2 minutes, 24 seconds.
• To count from 1 to 18,385,732,944 would take you about one thousand, one hundred sixty-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 18385732944 cubic inches would be around 219.9 feet tall.

Recreational maths with 18385732944

• 18385732944 backwards is 44923758381
• 18385732944 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18385732944's digits is 54
• More coming soon!