20809483440

Names of 20809483440

• Cardinal: 20809483440 can be written as Twenty billion, eight hundred nine million, four hundred eighty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.080948344 × 10¹⁰

Factors of 20809483440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 177092

Divisors of 20809483440

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 491 982 1473 1964 2455 2946 3928 4910 5892 7365 7856 9820 11784 14730 19640 23568 29460 39280 58920 117840 176591 353182 529773 706364 882955 1059546 1412728 1765910 2119092 2648865 2825456 3531820 4238184 5297730 7063640 8476368 10595460 14127280 21190920 42381840 86706181 173412362 260118543 346824724 433530905 520237086 693649448 867061810 1040474172 1300592715 1387298896 1734123620 2080948344 2601185430 3468247240 4161896688 5202370860 6936494480 10404741720 20809483440
• Sum of all divisors σ(n): 64641148416
• Sum of proper divisors (its aliquot sum) s(n): 43831664976
• 20809483440 is an abundant number, because the sum of its proper divisors (43831664976) is greater than itself. Its abundance is 23022181536

Bases of 20809483440

• Binary: 10011011000010101111000010010110000₂
• Hexadecimal: 0x4D85784B0
• Base-36: 9K5FG6O

Squares and roots of 20809483440

• 20809483440 squared (20809483440²) is 433034601039634233600
• 20809483440 cubed (20809483440³) is 9011226359281275367756291584000
• The square root of 20809483440 is 144254.9251845495
• The cube root of 20809483440 is 2750.5556316401

Scales and comparisons

• 20,809,483,440 seconds is equal to 661 years, 35 weeks, 1 day, 12 hours, 4 minutes.
• To count from 1 to 20,809,483,440 would take you about one thousand, three hundred twenty-three 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 20809483440 cubic inches would be around 229.2 feet tall.

Recreational maths with 20809483440

• 20809483440 backwards is 04438490802
• The number of decimal digits it has is: 11
• The sum of 20809483440's digits is 42
• More coming soon!