21132809160

Names of 21132809160

• Cardinal: 21132809160 can be written as Twenty-one billion, one hundred thirty-two million, eight hundred nine thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.113280916 × 10¹⁰

Factors of 21132809160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1121866

Divisors of 21132809160

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 157 314 471 628 785 942 1256 1570 1884 2355 3140 3768 4710 6280 9420 18840 1121699 2243398 3365097 4486796 5608495 6730194 8973592 11216990 13460388 16825485 22433980 26920776 33650970 44867960 67301940 134603880 176106743 352213486 528320229 704426972 880533715 1056640458 1408853944 1761067430 2113280916 2641601145 3522134860 4226561832 5283202290 7044269720 10566404580 21132809160
• Sum of all divisors σ(n): 63802296000
• Sum of proper divisors (its aliquot sum) s(n): 42669486840
• 21132809160 is an abundant number, because the sum of its proper divisors (42669486840) is greater than itself. Its abundance is 21536677680

Bases of 21132809160

• Binary: 10011101011100111010001001111001000₂
• Hexadecimal: 0x4EB9D13C8
• Base-36: 9PHXFWO

Squares and roots of 21132809160

• 21132809160 squared (21132809160²) is 446595622992979905600
• 21132809160 cubed (21132809160³) is 9437820072401952364759615296000
• The square root of 21132809160 is 145371.2803823369
• The cube root of 21132809160 is 2764.7279967259

Scales and comparisons

• 21,132,809,160 seconds is equal to 671 years, 49 weeks, 5 days, 16 hours, 46 minutes.
• To count from 1 to 21,132,809,160 would take you about one thousand, three hundred forty-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 21132809160 cubic inches would be around 230.4 feet tall.

Recreational maths with 21132809160

• 21132809160 backwards is 06190823112
• The number of decimal digits it has is: 11
• The sum of 21132809160's digits is 33
• More coming soon!