16491139832415889

Names of 16491139832415889

• Cardinal: 16491139832415889 can be written as Sixteen quadrillion, four hundred ninety-one trillion, one hundred thirty-nine billion, eight hundred thirty-two million, four hundred fifteen thousand, eight hundred eighty-nine.

Scientific notation

• Scientific notation: 1.6491139832415889 × 10¹⁶

Factors of 16491139832415889

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 202

Divisors of 16491139832415889

• Number of divisors d(n): 21
• Complete list of divisors:
  1 89 113 7921 10057 12769 895073 1136441 1442897 101143249 128417833 163047361 11429187137 14511215129 18424351793 1291498146481 1639767309577 2081951752609 145939290552353 185293705982201 16491139832415889
• Sum of all divisors σ(n): 16827430807026973
• Sum of proper divisors (its aliquot sum) s(n): 336290974611084
• 16491139832415889 is a deficient number, because the sum of its proper divisors (336290974611084) is less than itself. Its deficiency is 16154848857804805

Bases of 16491139832415889

• Binary: 111010100101101001101010110011101001110000011010010001₂
• Hexadecimal: 0x3A969AB3A70691
• Base-36: 4IDMD1VLVO1

Squares and roots of 16491139832415889

• 16491139832415889 squared (16491139832415889²) is 271957692972293955531354259660321
• 16491139832415889 cubed (16491139832415889³) is 4484892343307327535448507317259169824701943240369
• 16491139832415889 is a perfect square number. Its square root is 128417833
• The cube root of 16491139832415889 is 254536.5918255661
• Being both a perfect square and a perfect cube, 16491139832415889 is also a perfect sixth number.

Scales and comparisons

• 16,491,139,832,415,889 seconds is equal to 524,367,236 years, 11 weeks, 5 days, 7 hours, 4 minutes, 49 seconds.
• To count from 1 to 16,491,139,832,415,889 would take you about one billion, five hundred seventy-three million, one hundred one thousand, seven hundred 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 16491139832415889 cubic inches would be around 21211.4 feet tall.

Recreational maths with 16491139832415889

• 16491139832415889 backwards is 98851423893119461
• The number of decimal digits it has is: 17
• The sum of 16491139832415889's digits is 82
• More coming soon!