16721388394641

Names of 16721388394641

• Cardinal: 16721388394641 can be written as Sixteen trillion, seven hundred twenty-one billion, three hundred eighty-eight million, three hundred ninety-four thousand, six hundred forty-one.

Scientific notation

• Scientific notation: 1.6721388394641 × 10¹³

Factors of 16721388394641

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 17034

Divisors of 16721388394641

• Number of divisors d(n): 60
• Complete list of divisors:
  1 3 7 9 21 27 63 81 103 189 309 567 721 927 2163 2781 6489 8343 16921 19467 50763 58401 118447 152289 355341 456867 1066023 1370601 1742863 3198069 5228589 9594207 12200041 15685767 36600123 47057301 109800369 141171903 286320241 329401107 858960723 988203321 2004241687 2576882169 6012725061 7730646507 18038175183 23191939521 29490984823 54114525549 88472954469 162343576647 206436893761 265418863407 619310681283 796256590221 1857932043849 2388769770663 5573796131547 16721388394641
• Sum of all divisors σ(n): 28826134873536
• Sum of proper divisors (its aliquot sum) s(n): 12104746478895
• 16721388394641 is a deficient number, because the sum of its proper divisors (12104746478895) is less than itself. Its deficiency is 4616641915746

Bases of 16721388394641

• Binary: 11110011010101000000011010100101100010010001₂
• Hexadecimal: 0xF35406A5891
• Base-36: 5XDP6X029

Squares and roots of 16721388394641

• 16721388394641 squared (16721388394641²) is 279604829844434719157518881
• 16721388394641 cubed (16721388394641³) is 4675380956846302234341468329569236716721
• The square root of 16721388394641 is 4089179.4280321083
• The cube root of 16721388394641 is 25571.5730571583

Scales and comparisons

• 16,721,388,394,641 seconds is equal to 531,688 years, 22 weeks, 1 day, 21 hours, 37 minutes, 21 seconds.
• To count from 1 to 16,721,388,394,641 would take you about one million, three hundred twenty-nine thousand, two hundred twenty-one 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 16721388394641 cubic inches would be around 2131 feet tall.

Recreational maths with 16721388394641

• 16721388394641 backwards is 14649388312761
• 16721388394641 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 16721388394641's digits is 63
• More coming soon!