642984650109

Names of 642984650109

• Cardinal: 642984650109 can be written as Six hundred forty-two billion, nine hundred eighty-four million, six hundred fifty thousand, one hundred nine.

Scientific notation

• Scientific notation: 6.42984650109 × 10¹¹

Factors of 642984650109

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 17707

Divisors of 642984650109

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 17 51 61 153 183 233 289 549 699 867 1037 2097 2601 3111 3961 9333 11883 14213 17393 17629 35649 42639 52179 52887 67337 127917 156537 158661 202011 241621 295681 606033 724863 887043 1060973 2174589 2661129 3182919 4052569 4107557 5026577 9548757 12157707 12322671 15079731 18036541 36473121 36968013 45239193 54109623 68893673 162328869 206681019 247206709 306621197 620043057 741620127 919863591 1171192441 2224860381 2759590773 3513577323 4202514053 10540731969 12607542159 37822626477 71442738901 214328216703 642984650109
• Sum of all divisors σ(n): 1007137438632
• Sum of proper divisors (its aliquot sum) s(n): 364152788523
• 642984650109 is a deficient number, because the sum of its proper divisors (364152788523) is less than itself. Its deficiency is 278831861586

Bases of 642984650109

• Binary: 1001010110110100110111110010010101111101₂
• Hexadecimal: 0x95B4DF257D
• Base-36: 87DSGJ99

Squares and roots of 642984650109

• 642984650109 squared (642984650109²) is 413429260275793153711881
• 642984650109 cubed (642984650109³) is 265828668263253553781891459381245029
• The square root of 642984650109 is 801863.2365366303
• The cube root of 642984650109 is 8631.1143095393

Scales and comparisons

• 642,984,650,109 seconds is equal to 20,444 years, 47 weeks, 6 days, 23 hours, 15 minutes, 9 seconds.
• To count from 1 to 642,984,650,109 would take you about forty thousand, eight hundred eighty-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 642984650109 cubic inches would be around 719.3 feet tall.

Recreational maths with 642984650109

• 642984650109 backwards is 901056489246
• The number of decimal digits it has is: 12
• The sum of 642984650109's digits is 54
• More coming soon!