13638128199794221

Names of 13638128199794221

• Cardinal: 13638128199794221 can be written as Thirteen quadrillion, six hundred thirty-eight trillion, one hundred twenty-eight billion, one hundred ninety-nine million, seven hundred ninety-four thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.3638128199794221 × 10¹⁶

Factors of 13638128199794221

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 268

Divisors of 13638128199794221

• Number of divisors d(n): 96
• Complete list of divisors:
  1 17 23 97 131 289 391 1649 2227 2231 3013 6647 9409 12707 17161 28033 37859 37927 51221 159953 216019 216407 291737 292261 394703 644759 870757 912673 1232579 1664617 2248091 2719201 3672323 3678919 4959529 4968437 6709951 15515441 20953843 20991479 28298489 28349317 38217547 38286191 51706093 62541623 84463429 114069167 119560163 161467849 218064827 263762497 356215331 356855143 481074313 481938389 649698299 650865247 879003581 2032522771 2744953433 2749883749 3707102059 3713760527 5015491021 6066537431 8192952613 11064709199 14943060877 15662381353 21152288219 34552887107 46664208361 46748023733 63020735003 63133928959 85263347357 266260483001 359588899723 360234771119 486502629037 794716403461 1073276792303 1449476905069 2051771957243 4526428211017 6113011295291 6123991109023 8270544693629 34880123273131 47190755016589 104107848853391 140599259791693 592962095643227 802242835282013 13638128199794221
• Sum of all divisors σ(n): 15392428508540160
• Sum of proper divisors (its aliquot sum) s(n): 1754300308745939
• 13638128199794221 is a deficient number, because the sum of its proper divisors (1754300308745939) is less than itself. Its deficiency is 11883827891048282

Bases of 13638128199794221

• Binary: 110000011100111100111000101010101111111111111000101101₂
• Hexadecimal: 0x3073CE2ABFFE2D
• Base-36: 3QAB9LO4EGD

Squares and roots of 13638128199794221

• 13638128199794221 squared (13638128199794221²) is 185998540794022359234306744996841
• 13638128199794221 cubed (13638128199794221³) is 2536671944323532135177876099330749745337495055861
• The square root of 13638128199794221 is 116782396.7890461691
• The cube root of 13638128199794221 is 238919.4957691469

Scales and comparisons

• 13,638,128,199,794,221 seconds is equal to 433,650,291 years, 13 weeks, 1 day, 3 hours, 17 minutes, 1 second.
• To count from 1 to 13,638,128,199,794,221 would take you about one billion, three hundred million, nine hundred fifty thousand, eight hundred seventy-three 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 13638128199794221 cubic inches would be around 19910 feet tall.

Recreational maths with 13638128199794221

• 13638128199794221 backwards is 12249799182183631
• The number of decimal digits it has is: 17
• The sum of 13638128199794221's digits is 76
• More coming soon!