13987155109221

Names of 13987155109221

• Cardinal: 13987155109221 can be written as Thirteen trillion, nine hundred eighty-seven billion, one hundred fifty-five million, one hundred nine thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.3987155109221 × 10¹³

Factors of 13987155109221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1561

Divisors of 13987155109221

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 27 63 189 331 601 619 993 1803 1857 2317 2979 4207 4333 5409 5571 6951 8937 12621 12999 16227 16713 20853 37863 38997 62559 113589 116991 198931 204889 361201 372019 596793 614667 1083603 1116057 1392517 1434223 1790379 1844001 2528407 2604133 3250809 3348171 4177551 4302669 5371137 5532003 7585221 7812399 9752427 10044513 12532653 12908007 22755663 23437197 37597959 38724021 68266989 70311591 119557531 123138289 223583419 358672593 369414867 670750257 836902717 861968023 1076017779 1108244601 1565083933 2012250771 2510708151 2585904069 3228053337 3324733803 4695251799 6036752313 7532124453 7757712207 14085755397 22596373359 23273136621 42257266191 74006111689 222018335067 518042781823 666055005201 1554128345469 1998165015603 4662385036407 13987155109221
• Sum of all divisors σ(n): 23831529446400
• Sum of proper divisors (its aliquot sum) s(n): 9844374337179
• 13987155109221 is a deficient number, because the sum of its proper divisors (9844374337179) is less than itself. Its deficiency is 4142780772042

Bases of 13987155109221

• Binary: 11001011100010100011011010010110010101100101₂
• Hexadecimal: 0xCB8A3696565
• Base-36: 4YHLZ0IN9

Squares and roots of 13987155109221

• 13987155109221 squared (13987155109221²) is 195640508049407124439226841
• 13987155109221 cubed (13987155109221³) is 2736454131733857037300049443604149800861
• The square root of 13987155109221 is 3739940.5221501853
• The cube root of 13987155109221 is 24094.0494305889

Scales and comparisons

• 13,987,155,109,221 seconds is equal to 444,748 years, 13 weeks, 6 days, 7 hours, 40 minutes, 21 seconds.
• To count from 1 to 13,987,155,109,221 would take you about one million, one hundred eleven thousand, eight hundred seventy 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 13987155109221 cubic inches would be around 2007.8 feet tall.

Recreational maths with 13987155109221

• 13987155109221 backwards is 12290155178931
• The number of decimal digits it has is: 14
• The sum of 13987155109221's digits is 54
• More coming soon!