91438739928240

Names of 91438739928240

• Cardinal: 91438739928240 can be written as Ninety-one trillion, four hundred thirty-eight billion, seven hundred thirty-nine million, nine hundred twenty-eight thousand, two hundred forty.

Scientific notation

• Scientific notation: 9.143873992824 × 10¹³

Factors of 91438739928240

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 380994749711

Divisors of 91438739928240

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 380994749701 761989499402 1142984249103 1523978998804 1904973748505 2285968498206 3047957997608 3809947497010 4571936996412 5714921245515 6095915995216 7619894994020 9143873992824 11429842491030 15239789988040 18287747985648 22859684982060 30479579976080 45719369964120 91438739928240
• Sum of all divisors σ(n): 283460093778288
• Sum of proper divisors (its aliquot sum) s(n): 192021353850048
• 91438739928240 is an abundant number, because the sum of its proper divisors (192021353850048) is greater than itself. Its abundance is 100582613921808

Bases of 91438739928240

• Binary: 10100110010100110111101100111001011010010110000₂
• Hexadecimal: 0x5329BD9CB4B0
• Base-36: WEUDKVHYO

Squares and roots of 91438739928240

• 91438739928240 squared (91438739928240²) is 8361043159664312040349497600
• 91438739928240 cubed (91438739928240³) is 764523251005335058798876188161544052224000
• The square root of 91438739928240 is 9562360.5834668251
• The cube root of 91438739928240 is 45051.5852757987

Scales and comparisons

• 91,438,739,928,240 seconds is equal to 2,907,469 years, 4 weeks, 5 days, 4 hours, 4 minutes.
• To count from 1 to 91,438,739,928,240 would take you about seven million, two hundred sixty-eight thousand, six hundred seventy-two 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 91438739928240 cubic inches would be around 3754.3 feet tall.

Recreational maths with 91438739928240

• 91438739928240 backwards is 04282993783419
• The number of decimal digits it has is: 14
• The sum of 91438739928240's digits is 69
• More coming soon!