21198424644990

Names of 21198424644990

• Cardinal: 21198424644990 can be written as Twenty-one trillion, one hundred ninety-eight billion, four hundred twenty-four million, six hundred forty-four thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.119842464499 × 10¹³

Factors of 21198424644990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 491729198

Divisors of 21198424644990

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 30 45 90 479 958 1437 2395 2874 4311 4790 7185 8622 14370 21555 43110 491728709 983457418 1475186127 2458643545 2950372254 4425558381 4917287090 7375930635 8851116762 14751861270 22127791905 44255583810 235538051611 471076103222 706614154833 1177690258055 1413228309666 2119842464499 2355380516110 3533070774165 4239684928998 7066141548330 10599212322495 21198424644990
• Sum of all divisors σ(n): 55230968707200
• Sum of proper divisors (its aliquot sum) s(n): 34032544062210
• 21198424644990 is an abundant number, because the sum of its proper divisors (34032544062210) is greater than itself. Its abundance is 12834119417220

Bases of 21198424644990

• Binary: 100110100011110100100100100100001110101111110₂
• Hexadecimal: 0x1347A4921D7E
• Base-36: 7IIF6PFNI

Squares and roots of 21198424644990

• 21198424644990 squared (21198424644990²) is 449373207429319407532100100
• 21198424644990 cubed (21198424644990³) is 9526004075167887892130976194371643499000
• The square root of 21198424644990 is 4604174.6974881395
• The cube root of 21198424644990 is 27675.8645151561

Scales and comparisons

• 21,198,424,644,990 seconds is equal to 674,044 years, 17 weeks, 2 days, 2 hours, 16 minutes, 30 seconds.
• To count from 1 to 21,198,424,644,990 would take you about one million, six hundred eighty-five thousand, one hundred ten 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 21198424644990 cubic inches would be around 2306.3 feet tall.

Recreational maths with 21198424644990

• 21198424644990 backwards is 09944642489112
• The number of decimal digits it has is: 14
• The sum of 21198424644990's digits is 63
• More coming soon!