208991335872

Names of 208991335872

• Cardinal: 208991335872 can be written as Two hundred eight billion, nine hundred ninety-one million, three hundred thirty-five thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.08991335872 × 10¹¹

Factors of 208991335872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 98954247

Divisors of 208991335872

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 132 176 192 264 352 528 704 1056 2112 98954231 197908462 296862693 395816924 593725386 791633848 1088496541 1187450772 1583267696 2176993082 2374901544 3166535392 3265489623 4353986164 4749803088 6333070784 6530979246 8707972328 9499606176 13061958492 17415944656 18999212352 26123916984 34831889312 52247833968 69663778624 104495667936 208991335872
• Sum of all divisors σ(n): 603224998272
• Sum of proper divisors (its aliquot sum) s(n): 394233662400
• 208991335872 is an abundant number, because the sum of its proper divisors (394233662400) is greater than itself. Its abundance is 185242326528

Bases of 208991335872

• Binary: 11000010101000110110101011010111000000₂
• Hexadecimal: 0x30A8DAB5C0
• Base-36: 2O0C1MTC

Squares and roots of 208991335872

• 208991335872 squared (208991335872²) is 43677378469563114000384
• 208991335872 cubed (208991335872³) is 9128193673740926087156478080974848
• The square root of 208991335872 is 457155.7020009703
• The cube root of 208991335872 is 5934.3901344401

Scales and comparisons

• 208,991,335,872 seconds is equal to 6,645 years, 14 weeks, 3 days, 4 hours, 51 minutes, 12 seconds.
• To count from 1 to 208,991,335,872 would take you about thirteen thousand, two hundred ninety 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 208991335872 cubic inches would be around 494.5 feet tall.

Recreational maths with 208991335872

• 208991335872 backwards is 278533199802
• The number of decimal digits it has is: 12
• The sum of 208991335872's digits is 57
• More coming soon!