729239768145

Names of 729239768145

• Cardinal: 729239768145 can be written as Seven hundred twenty-nine billion, two hundred thirty-nine million, seven hundred sixty-eight thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 7.29239768145 × 10¹¹

Factors of 729239768145

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 31713059

Divisors of 729239768145

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 7 9 15 21 35 45 63 73 105 219 315 365 511 657 1095 1533 2555 3285 4599 7665 22995 31712971 95138913 158564855 221990797 285416739 475694565 665972391 1109953985 1427083695 1997917173 2315046883 3329861955 6945140649 9989585865 11575234415 16205328181 20835421947 34725703245 48615984543 81026640905 104177109735 145847953629 243079922715 729239768145
• Sum of all divisors σ(n): 1464378195072
• Sum of proper divisors (its aliquot sum) s(n): 735138426927
• 729239768145 is an abundant number, because the sum of its proper divisors (735138426927) is greater than itself. Its abundance is 5898658782

Bases of 729239768145

• Binary: 1010100111001010000100111100110001010001₂
• Hexadecimal: 0xA9CA13CC51
• Base-36: 9B0AJ2A9

Squares and roots of 729239768145

• 729239768145 squared (729239768145²) is 531790639444173356741025
• 729239768145 cubed (729239768145³) is 387802882609950270341011443809648625
• The square root of 729239768145 is 853955.3666000349
• The cube root of 729239768145 is 9000.9865920297

Scales and comparisons

• 729,239,768,145 seconds is equal to 23,187 years, 29 weeks, 4 days, 2 hours, 15 minutes, 45 seconds.
• To count from 1 to 729,239,768,145 would take you about forty-six thousand, three hundred seventy-five 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 729239768145 cubic inches would be around 750.1 feet tall.

Recreational maths with 729239768145

• 729239768145 backwards is 541867932927
• 729239768145 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 729239768145's digits is 63
• More coming soon!