21055937180

Names of 21055937180

• Cardinal: 21055937180 can be written as Twenty-one billion, fifty-five million, nine hundred thirty-seven thousand, one hundred eighty.

Scientific notation

• Scientific notation: 2.105593718 × 10¹⁰

Factors of 21055937180

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 105217

Divisors of 21055937180

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 17 19 20 31 34 38 62 68 76 85 95 124 155 170 190 310 323 340 380 527 589 620 646 1054 1178 1292 1615 2108 2356 2635 2945 3230 5270 5890 6460 10013 10540 11780 20026 40052 50065 100130 105143 200260 210286 420572 525715 1051430 1787431 1997717 2102860 3259433 3574862 3995434 6518866 7149724 7990868 8937155 9988585 13037732 16297165 17874310 19977170 32594330 33961189 35748620 39954340 55410361 61929227 65188660 67922378 110820722 123858454 135844756 169805945 221641444 247716908 277051805 309646135 339611890 554103610 619292270 679223780 1052796859 1108207220 1238584540 2105593718 4211187436 5263984295 10527968590 21055937180
• Sum of all divisors σ(n): 50872872960
• Sum of proper divisors (its aliquot sum) s(n): 29816935780
• 21055937180 is an abundant number, because the sum of its proper divisors (29816935780) is greater than itself. Its abundance is 8760998600

Bases of 21055937180

• Binary: 10011100111000010000001101010011100₂
• Hexadecimal: 0x4E7081A9C
• Base-36: 9O85T3W

Squares and roots of 21055937180

• 21055937180 squared (21055937180²) is 443352490528106352400
• 21055937180 cubed (21055937180³) is 9335202189156352380493342232000
• The square root of 21055937180 is 145106.6407164057
• The cube root of 21055937180 is 2761.3716305955

Scales and comparisons

• 21,055,937,180 seconds is equal to 669 years, 26 weeks, 4 days, 23 hours, 26 minutes, 20 seconds.
• To count from 1 to 21,055,937,180 would take you about one thousand, three hundred thirty-nine 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 21055937180 cubic inches would be around 230.1 feet tall.

Recreational maths with 21055937180

• 21055937180 backwards is 08173955012
• The number of decimal digits it has is: 11
• The sum of 21055937180's digits is 41
• More coming soon!