20989918848

Names of 20989918848

• Cardinal: 20989918848 can be written as Twenty billion, nine hundred eighty-nine million, nine hundred eighteen thousand, eight hundred forty-eight.

Scientific notation

• Scientific notation: 2.0989918848 × 10¹⁰

Factors of 20989918848

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1477373

Divisors of 20989918848

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 37 48 64 74 96 111 128 148 192 222 296 384 444 592 888 1184 1776 2368 3552 4736 7104 14208 1477331 2954662 4431993 5909324 8863986 11818648 17727972 23637296 35455944 47274592 54661247 70911888 94549184 109322494 141823776 163983741 189098368 218644988 283647552 327967482 437289976 567295104 655934964 874579952 1311869928 1749159904 2623739856 3498319808 5247479712 6996639616 10494959424 20989918848
• Sum of all divisors σ(n): 57261388320
• Sum of proper divisors (its aliquot sum) s(n): 36271469472
• 20989918848 is an abundant number, because the sum of its proper divisors (36271469472) is greater than itself. Its abundance is 15281550624

Bases of 20989918848

• Binary: 10011100011000110001011111010000000₂
• Hexadecimal: 0x4E318BE80
• Base-36: 9N4UT1C

Squares and roots of 20989918848

• 20989918848 squared (20989918848²) is 440576693245625647104
• 20989918848 cubed (20989918848³) is 9247669037545872063700446216192
• The square root of 20989918848 is 144878.9800074531
• The cube root of 20989918848 is 2758.4826274005

Scales and comparisons

• 20,989,918,848 seconds is equal to 667 years, 21 weeks, 3 days, 21 hours, 48 seconds.
• To count from 1 to 20,989,918,848 would take you about one thousand, three hundred thirty-four 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 20989918848 cubic inches would be around 229.9 feet tall.

Recreational maths with 20989918848

• 20989918848 backwards is 84881998902
• The number of decimal digits it has is: 11
• The sum of 20989918848's digits is 66
• More coming soon!