161397949678464

Names of 161397949678464

• Cardinal: 161397949678464 can be written as One hundred sixty-one trillion, three hundred ninety-seven billion, nine hundred forty-nine million, six hundred seventy-eight thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 1.61397949678464 × 10¹⁴

Factors of 161397949678464

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 420307160626

Divisors of 161397949678464

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 420307160621 840614321242 1260921481863 1681228642484 2521842963726 3362457284968 5043685927452 6724914569936 10087371854904 13449829139872 20174743709808 26899658279744 40349487419616 53799316559488 80698974839232 161397949678464
• Sum of all divisors σ(n): 428713303834440
• Sum of proper divisors (its aliquot sum) s(n): 267315354155976
• 161397949678464 is an abundant number, because the sum of its proper divisors (267315354155976) is greater than itself. Its abundance is 105917404477512

Bases of 161397949678464

• Binary: 100100101100101001100011011101010100001110000000₂
• Hexadecimal: 0x92CA63754380
• Base-36: 1L7L702ETC

Squares and roots of 161397949678464

• 161397949678464 squared (161397949678464²) is 26049298160411997600985399296
• 161397949678464 cubed (161397949678464³) is 4204303313653480434897729365675401851961344
• The square root of 161397949678464 is 12704249.2764611635
• The cube root of 161397949678464 is 54446.0032125945

Scales and comparisons

• 161,397,949,678,464 seconds is equal to 5,131,955 years, 29 weeks, 1 day, 23 hours, 34 minutes, 24 seconds.
• To count from 1 to 161,397,949,678,464 would take you about twelve million, eight hundred twenty-nine thousand, eight hundred eighty-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 161397949678464 cubic inches would be around 4537.2 feet tall.

Recreational maths with 161397949678464

• 161397949678464 backwards is 464876949793161
• The number of decimal digits it has is: 15
• The sum of 161397949678464's digits is 84
• More coming soon!