961536491721

Names of 961536491721

• Cardinal: 961536491721 can be written as Nine hundred sixty-one billion, five hundred thirty-six million, four hundred ninety-one thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 9.61536491721 × 10¹¹

Factors of 961536491721

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 34312

Divisors of 961536491721

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 29 39 53 87 117 157 159 261 377 471 477 689 1131 1413 1537 2041 2067 3393 4553 4611 6123 6201 8321 13659 13833 18369 19981 24963 34057 40977 59189 59943 74889 102171 108173 177567 179829 241309 306513 324519 442741 532701 723927 973557 987653 1328223 1805021 2171781 2962959 3137017 3984669 5346949 5415063 8888877 9411051 12839489 16040847 16245189 23465273 28233153 38518467 48122541 52345609 69510337 70395819 115555401 155061521 157036827 208531011 211187457 283388297 465184563 471110481 625593033 680492917 850164891 1395553689 2015799773 2041478751 2550494673 3684047861 6047399319 6124436253 8218260613 11052143583 18142197957 24654781839 33156430749 73964345517 106837387969 320512163907 961536491721
• Sum of all divisors σ(n): 1586582393760
• Sum of proper divisors (its aliquot sum) s(n): 625045902039
• 961536491721 is a deficient number, because the sum of its proper divisors (625045902039) is less than itself. Its deficiency is 336490589682

Bases of 961536491721

• Binary: 1101111111100000000010101000000011001001₂
• Hexadecimal: 0xDFE00A80C9
• Base-36: C9Q201C9

Squares and roots of 961536491721

• 961536491721 squared (961536491721²) is 924552424911128701541841
• 961536491721 cubed (961536491721³) is 888990895061189976890851878631598361
• The square root of 961536491721 is 980579.6712766383
• The cube root of 961536491721 is 9870.1084287321

Scales and comparisons

• 961,536,491,721 seconds is equal to 30,573 years, 46 weeks, 13 hours, 55 minutes, 21 seconds.
• To count from 1 to 961,536,491,721 would take you about sixty-one thousand, one hundred forty-seven 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 961536491721 cubic inches would be around 822.5 feet tall.

Recreational maths with 961536491721

• 961536491721 backwards is 127194635169
• The number of decimal digits it has is: 12
• The sum of 961536491721's digits is 54
• More coming soon!