12891388193937

Names of 12891388193937

• Cardinal: 12891388193937 can be written as Twelve trillion, eight hundred ninety-one billion, three hundred eighty-eight million, one hundred ninety-three thousand, nine hundred thirty-seven.

Scientific notation

• Scientific notation: 1.2891388193937 × 10¹³

Factors of 12891388193937

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 41205

Divisors of 12891388193937

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 11 33 99 103 121 309 363 927 1089 1133 3019 3399 9057 10197 12463 27171 33209 37389 38069 99627 112167 114207 298881 310957 342621 365299 418759 932871 1095897 1256277 2798613 3287691 3420527 3768831 3921107 4606349 10261581 11763321 13819047 30784743 35289963 37625797 41457141 43132177 112877391 114930311 129396531 338632173 344790933 388189593 474453947 1034372799 1264233421 1423361841 3792700263 4270085523 11378100789 11837822033 13906567631 35513466099 41719702893 106540398297 125159108679 130216042363 390648127089 1171944381267 1432376465993 4297129397979 12891388193937
• Sum of all divisors σ(n): 20673697262400
• Sum of proper divisors (its aliquot sum) s(n): 7782309068463
• 12891388193937 is a deficient number, because the sum of its proper divisors (7782309068463) is less than itself. Its deficiency is 5109079125474

Bases of 12891388193937

• Binary: 10111011100110000010100111010010110010010001₂
• Hexadecimal: 0xBB9829D2C91
• Base-36: 4KI7ZONM9

Squares and roots of 12891388193937

• 12891388193937 squared (12891388193937²) is 166187889566778266723559969
• 12891388193937 cubed (12891388193937³) is 2142392597536471285213177015214021707953
• The square root of 12891388193937 is 3590457.9365224431
• The cube root of 12891388193937 is 23447.6809165241

Scales and comparisons

• 12,891,388,193,937 seconds is equal to 409,906 years, 13 weeks, 6 days, 20 hours, 58 minutes, 57 seconds.
• To count from 1 to 12,891,388,193,937 would take you about one million, twenty-four thousand, seven hundred sixty-five 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 12891388193937 cubic inches would be around 1954 feet tall.

Recreational maths with 12891388193937

• 12891388193937 backwards is 73939188319821
• The number of decimal digits it has is: 14
• The sum of 12891388193937's digits is 72
• More coming soon!