1997656128972

Names of 1997656128972

• Cardinal: 1997656128972 can be written as One trillion, nine hundred ninety-seven billion, six hundred fifty-six million, one hundred twenty-eight thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.997656128972 × 10¹²

Factors of 1997656128972

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 19441

Divisors of 1997656128972

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 84 98 108 126 147 189 196 252 294 378 441 588 756 882 1323 1764 2646 5292 19429 38858 58287 77716 116574 136003 174861 233148 272006 349722 408009 524583 544012 699444 816018 952021 1049166 1224027 1632036 1904042 2098332 2448054 2856063 3672081 3808084 4896108 5712126 7344162 8568189 11424252 14688324 17136378 25704567 34272756 51409134 102818268 377486041 754972082 1132458123 1509944164 2264916246 2642402287 3397374369 4529832492 5284804574 6794748738 7927206861 10192123107 10569609148 13589497476 15854413722 18496816009 20384246214 23781620583 31708827444 36993632018 40768492428 47563241166 55490448027 71344861749 73987264036 95126482332 110980896054 142689723498 166471344081 221961792108 285379446996 332942688162 499414032243 665885376324 998828064486 1997656128972
• Sum of all divisors σ(n): 6024987317160
• Sum of proper divisors (its aliquot sum) s(n): 4027331188188
• 1997656128972 is an abundant number, because the sum of its proper divisors (4027331188188) is greater than itself. Its abundance is 2029675059216

Bases of 1997656128972

• Binary: 11101000100011101100101010111110111001100₂
• Hexadecimal: 0x1D11D957DCC
• Base-36: PHPKVQ30

Squares and roots of 1997656128972

• 1997656128972 squared (1997656128972²) is 3990630009619395897776784
• 1997656128972 cubed (1997656128972³) is 7971906497175777532201906946371386048
• The square root of 1997656128972 is 1413384.6358907401
• The cube root of 1997656128972 is 12594.2867542665

Scales and comparisons

• 1,997,656,128,972 seconds is equal to 63,519 years, 14 weeks, 6 days, 16 minutes, 12 seconds.
• To count from 1 to 1,997,656,128,972 would take you about one hundred fifty-eight thousand, seven hundred ninety-eight 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 1997656128972 cubic inches would be around 1049.5 feet tall.

Recreational maths with 1997656128972

• 1997656128972 backwards is 2798216567991
• The number of decimal digits it has is: 13
• The sum of 1997656128972's digits is 72
• More coming soon!