42721135997064561

Names of 42721135997064561

• Cardinal: 42721135997064561 can be written as Forty-two quadrillion, seven hundred twenty-one trillion, one hundred thirty-five billion, nine hundred ninety-seven million, sixty-four thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 4.2721135997064561 × 10¹⁶

Factors of 42721135997064561

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 71727

Divisors of 42721135997064561

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 31 93 279 961 2883 8649 29791 71693 89373 215079 268119 645237 923521 2222483 2770563 6667449 8311689 20002347 68896973 206690919 620072757 2135806163 5139886249 6407418489 15419658747 19222255467 46258976241 66209991053 159336473719 198629973159 478009421157 595889919477 1434028263471 4939430685289 14818292055867 44454876167601 153122351243959 459367053731877 1378101161195631 4746792888562729 14240378665688187 42721135997064561
• Sum of all divisors σ(n): 63766138342329995
• Sum of proper divisors (its aliquot sum) s(n): 21045002345265434
• 42721135997064561 is a deficient number, because the sum of its proper divisors (21045002345265434) is less than itself. Its deficiency is 21676133651799127

Bases of 42721135997064561

• Binary: 10010111110001101010010110010111100000011001010101110001₂
• Hexadecimal: 0x97C6A597819571
• Base-36: BONDMXTLVU9

Squares and roots of 42721135997064561

• 42721135997064561 squared (42721135997064561²) is 1825095460879685422531208802122721
• 42721135997064561 cubed (42721135997064561³) is 77970151391866264178584032582852263496161681990481
• 42721135997064561 is a perfect square number. Its square root is 206690919
• The cube root of 42721135997064561 is 349580.8206089501

Scales and comparisons

• 42,721,135,997,064,561 seconds is equal to 1,358,399,979 years, 28 weeks, 6 days, 14 hours, 49 minutes, 21 seconds.
• To count from 1 to 42,721,135,997,064,561 would take you about four billion, seventy-five million, one hundred ninety-nine thousand, nine hundred thirty-eight 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 42721135997064561 cubic inches would be around 29131.7 feet tall.

Recreational maths with 42721135997064561

• 42721135997064561 backwards is 16546079953112724
• The number of decimal digits it has is: 17
• The sum of 42721135997064561's digits is 72
• More coming soon!