80818002721

Names of 80818002721

• Cardinal: 80818002721 can be written as Eighty billion, eight hundred eighteen million, two thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 8.0818002721 × 10¹⁰

Factors of 80818002721

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 338150878

Divisors of 80818002721

• Number of divisors d(n): 4
• Complete list of divisors:
  1 239 338150639 80818002721
• Sum of all divisors σ(n): 81156153600
• Sum of proper divisors (its aliquot sum) s(n): 338150879
• 80818002721 is a deficient number, because the sum of its proper divisors (338150879) is less than itself. Its deficiency is 80479851842

Bases of 80818002721

• Binary: 1001011010001001000001101101100100001₂
• Hexadecimal: 0x12D120DB21
• Base-36: 114KYA01

Squares and roots of 80818002721

• 80818002721 squared (80818002721²) is 6531549563811563403841
• 80818002721 cubed (80818002721³) is 527866790420469294302885959851361
• The square root of 80818002721 is 284285.0729830885
• The cube root of 80818002721 is 4323.5057191403

Scales and comparisons

• 80,818,002,721 seconds is equal to 2,569 years, 39 weeks, 4 days, 13 hours, 12 minutes, 1 second.
• To count from 1 to 80,818,002,721 would take you about five thousand, one hundred thirty-nine 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 80818002721 cubic inches would be around 360.3 feet tall.

Recreational maths with 80818002721

• 80818002721 backwards is 12720081808
• The number of decimal digits it has is: 11
• The sum of 80818002721's digits is 37
• More coming soon!