19982731509

Names of 19982731509

• Cardinal: 19982731509 can be written as Nineteen billion, nine hundred eighty-two million, seven hundred thirty-one thousand, five hundred nine.

Scientific notation

• Scientific notation: 1.9982731509 × 10¹⁰

Factors of 19982731509

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 612

Divisors of 19982731509

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 13 19 27 39 57 81 117 171 243 247 351 513 577 741 1053 1539 1731 2223 3159 4617 5193 6669 7501 10963 15579 20007 22503 32889 46737 60021 67509 98667 140211 142519 202527 296001 332929 427557 607581 888003 998787 1282671 1822743 2664009 2996361 3848013 4328077 6325651 8989083 11544039 12984231 18976953 26967249 34632117 38952693 56930859 80901747 82233463 116858079 170792577 246700389 350574237 512377731 740101167 1051722711 1537133193 2220303501 6660910503 19982731509
• Sum of all divisors σ(n): 33991033440
• Sum of proper divisors (its aliquot sum) s(n): 14008301931
• 19982731509 is a deficient number, because the sum of its proper divisors (14008301931) is less than itself. Its deficiency is 5974429578

Bases of 19982731509

• Binary: 10010100111000100000100100011110101₂
• Hexadecimal: 0x4A71048F5
• Base-36: 96H7AB9

Squares and roots of 19982731509

• 19982731509 squared (19982731509²) is 399309558560781417081
• 19982731509 cubed (19982731509³) is 7979295697697407514766169505229
• The square root of 19982731509 is 141360.2897174449
• The cube root of 19982731509 is 2713.6361600391

Scales and comparisons

• 19,982,731,509 seconds is equal to 635 years, 20 weeks, 1 day, 14 hours, 45 minutes, 9 seconds.
• To count from 1 to 19,982,731,509 would take you about one thousand, two hundred seventy 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 19982731509 cubic inches would be around 226.1 feet tall.

Recreational maths with 19982731509

• 19982731509 backwards is 90513728991
• The number of decimal digits it has is: 11
• The sum of 19982731509's digits is 54
• More coming soon!