18327843821

Names of 18327843821

• Cardinal: 18327843821 can be written as Eighteen billion, three hundred twenty-seven million, eight hundred forty-three thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 1.8327843821 × 10¹⁰

Factors of 18327843821

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 306

Divisors of 18327843821

• Number of divisors d(n): 60
• Complete list of divisors:
  1 7 19 41 49 133 239 287 343 779 931 1673 1681 2009 2401 4541 5453 6517 9799 11711 11767 14063 31787 31939 38171 45619 68593 81977 82369 98441 186181 222509 223573 267197 401759 480151 573839 576583 1303267 1557563 1565011 1870379 2812313 3361057 4036081 7633421 9122869 10902941 10955077 19686191 23527399 53433947 63860083 76685539 137803337 374037629 447020581 964623359 2618263403 18327843821
• Sum of all divisors σ(n): 23165390400
• Sum of proper divisors (its aliquot sum) s(n): 4837546579
• 18327843821 is a deficient number, because the sum of its proper divisors (4837546579) is less than itself. Its deficiency is 13490297242

Bases of 18327843821

• Binary: 10001000100011011001011001111101101₂
• Hexadecimal: 0x4446CB3ED
• Base-36: 8F3XAST

Squares and roots of 18327843821

• 18327843821 squared (18327843821²) is 335909859126967880041
• 18327843821 cubed (18327843821³) is 6156503436013178714674911076661
• The square root of 18327843821 is 135380.3671918495
• The cube root of 18327843821 is 2636.5567590215

Scales and comparisons

• 18,327,843,821 seconds is equal to 582 years, 39 weeks, 6 days, 19 hours, 43 minutes, 41 seconds.
• To count from 1 to 18,327,843,821 would take you about one thousand, one hundred sixty-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 18327843821 cubic inches would be around 219.7 feet tall.

Recreational maths with 18327843821

• 18327843821 backwards is 12834872381
• The number of decimal digits it has is: 11
• The sum of 18327843821's digits is 47
• More coming soon!