128160166842

Names of 128160166842

• Cardinal: 128160166842 can be written as One hundred twenty-eight billion, one hundred sixty million, one hundred sixty-six thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 1.28160166842 × 10¹¹

Factors of 128160166842

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1775

Divisors of 128160166842

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 6 9 18 27 29 54 58 81 87 162 174 243 261 486 522 729 783 1458 1566 1741 2349 3482 4698 5223 7047 10446 14094 15669 21141 31338 42282 47007 50489 94014 100978 141021 151467 282042 302934 423063 454401 846126 908802 1269189 1363203 2538378 2726406 3031081 4089609 6062162 8179218 9093243 12268827 18186486 24537654 27279729 36806481 54559458 73612962 81839187 87901349 163678374 175802698 245517561 263704047 491035122 527408094 736552683 791112141 1473105366 1582224282 2209658049 2373336423 4419316098 4746672846 7120009269 14240018538 21360027807 42720055614 64080083421 128160166842
• Sum of all divisors σ(n): 298338798510
• Sum of proper divisors (its aliquot sum) s(n): 170178631668
• 128160166842 is an abundant number, because the sum of its proper divisors (170178631668) is greater than itself. Its abundance is 42018464826

Bases of 128160166842

• Binary: 1110111010110111100001111001110111010₂
• Hexadecimal: 0x1DD6F0F3BA
• Base-36: 1MVJ95MI

Squares and roots of 128160166842

• 128160166842 squared (128160166842²) is 16425028364969276252964
• 128160166842 cubed (128160166842³) is 2105034375639044912783854837019688
• The square root of 128160166842 is 357994.6463873447
• The cube root of 128160166842 is 5041.7853814981

Scales and comparisons

• 128,160,166,842 seconds is equal to 4,075 years, 5 weeks, 6 hours, 20 minutes, 42 seconds.
• To count from 1 to 128,160,166,842 would take you about eight thousand, one hundred fifty 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 128160166842 cubic inches would be around 420.1 feet tall.

Recreational maths with 128160166842

• 128160166842 backwards is 248661061821
• The number of decimal digits it has is: 12
• The sum of 128160166842's digits is 45
• More coming soon!