81766064942804008

Names of 81766064942804008

• Cardinal: 81766064942804008 can be written as Eighty-one quadrillion, seven hundred sixty-six trillion, sixty-four billion, nine hundred forty-two million, eight hundred four thousand and eight.

Scientific notation

• Scientific notation: 8.1766064942804008 × 10¹⁶

Factors of 81766064942804008

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 415765289854

Divisors of 81766064942804008

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 13 26 31 52 61 62 104 122 124 244 248 403 488 793 806 1586 1612 1891 3172 3224 3782 6344 7564 15128 24583 49166 98332 196664 415765289747 831530579494 1663061158988 3326122317976 5404948766711 10809897533422 12888723982157 21619795066844 25361682674567 25777447964314 43239590133688 50723365349134 51554895928628 101446730698268 103109791857256 167553411768041 202893461396536 329701874769371 335106823536082 659403749538742 670213647072164 786212162911577 1318807499077484 1340427294144328 1572424325823154 2637614998154968 3144848651646308 6289697303292616 10220758117850501 20441516235701002 40883032471402004 81766064942804008
• Sum of all divisors σ(n): 173224450320606720
• Sum of proper divisors (its aliquot sum) s(n): 91458385377802712
• 81766064942804008 is an abundant number, because the sum of its proper divisors (91458385377802712) is greater than itself. Its abundance is 9692320434998704

Bases of 81766064942804008

• Binary: 100100010011111011100110110000111100110001110110000101000₂
• Hexadecimal: 0x1227DCD8798EC28
• Base-36: MD3NFO9PKBS

Squares and roots of 81766064942804008

• 81766064942804008 squared (81766064942804008²) is 6685689376230842604048421500864064
• 81766064942804008 cubed (81766064942804008³) is 546662511724305895290008231852635929412111002368512
• The square root of 81766064942804008 is 285947661.1948487471
• The cube root of 81766064942804008 is 434034.6142106431

Scales and comparisons

• 81,766,064,942,804,008 seconds is equal to 2,599,907,946 years, 7 weeks, 13 hours, 33 minutes, 28 seconds.
• To count from 1 to 81,766,064,942,804,008 would take you about seven billion, seven hundred ninety-nine million, seven hundred twenty-three thousand, eight 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 81766064942804008 cubic inches would be around 36169.6 feet tall.

Recreational maths with 81766064942804008

• 81766064942804008 backwards is 80040824946066718
• The number of decimal digits it has is: 17
• The sum of 81766064942804008's digits is 73
• More coming soon!