18513140791941

Names of 18513140791941

• Cardinal: 18513140791941 can be written as Eighteen trillion, five hundred thirteen billion, one hundred forty million, seven hundred ninety-one thousand, nine hundred forty-one.

Scientific notation

• Scientific notation: 1.8513140791941 × 10¹³

Factors of 18513140791941

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7533

Divisors of 18513140791941

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 23 27 69 207 529 621 1587 4761 7507 12167 14283 22521 36501 67563 109503 172661 202689 328509 517983 1553949 3971203 4661847 11913609 35740827 56355049 91337669 107222481 169065147 274013007 507195441 822039021 1296166127 1521586323 2466117063 3888498381 11665495143 29811820921 34996485429 89435462763 268306388289 685671881183 804919164867 2057015643549 6171046930647 18513140791941
• Sum of all divisors σ(n): 28677269001600
• Sum of proper divisors (its aliquot sum) s(n): 10164128209659
• 18513140791941 is a deficient number, because the sum of its proper divisors (10164128209659) is less than itself. Its deficiency is 8349012582282

Bases of 18513140791941

• Binary: 100001101011001101101001011100011101010000101₂
• Hexadecimal: 0x10D66D2E3A85
• Base-36: 6K8TI15Z9

Squares and roots of 18513140791941

• 18513140791941 squared (18513140791941²) is 342736381982229836650547481
• 18513140791941 cubed (18513140791941³) is 6345126894157491561477795659271562650621
• The square root of 18513140791941 is 4302689.9483858931
• The cube root of 18513140791941 is 26454.1229688813

Scales and comparisons

• 18,513,140,791,941 seconds is equal to 588,660 years, 31 weeks, 5 days, 20 hours, 52 minutes, 21 seconds.
• To count from 1 to 18,513,140,791,941 would take you about one million, four hundred seventy-one thousand, six hundred fifty-one 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 18513140791941 cubic inches would be around 2204.5 feet tall.

Recreational maths with 18513140791941

• 18513140791941 backwards is 14919704131581
• The number of decimal digits it has is: 14
• The sum of 18513140791941's digits is 54
• More coming soon!