31128406740610728

Names of 31128406740610728

• Cardinal: 31128406740610728 can be written as Thirty-one quadrillion, one hundred twenty-eight trillion, four hundred six billion, seven hundred forty million, six hundred ten thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 3.1128406740610728 × 10¹⁶

Factors of 31128406740610728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1297016947525452

Divisors of 31128406740610728

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 4 6 8 12 24 1297016947525447 2594033895050894 3891050842576341 5188067790101788 7782101685152682 10376135580203576 15564203370305364 31128406740610728
• Sum of all divisors σ(n): 77821016851526880
• Sum of proper divisors (its aliquot sum) s(n): 46692610110916152
• 31128406740610728 is an abundant number, because the sum of its proper divisors (46692610110916152) is greater than itself. Its abundance is 15564203370305424

Bases of 31128406740610728

• Binary: 1101110100101110001111011111010001100101010111010101000₂
• Hexadecimal: 0x6E971EFA32AEA8
• Base-36: 8II3KN1PQCO

Squares and roots of 31128406740610728

• 31128406740610728 squared (31128406740610728²) is 968977706208899406783386428689984
• 31128406740610728 cubed (31128406740610728³) is 30162732161454625958655516543763831342913136548352
• The square root of 31128406740610728 is 176432442.4265864093
• The cube root of 31128406740610728 is 314571.2037149299

Scales and comparisons

• 31,128,406,740,610,728 seconds is equal to 989,787,047 years, 45 weeks, 17 hours, 38 minutes, 48 seconds.
• To count from 1 to 31,128,406,740,610,728 would take you about two billion, nine hundred sixty-nine million, three hundred sixty-one thousand, one 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 31128406740610728 cubic inches would be around 26214.3 feet tall.

Recreational maths with 31128406740610728

• 31128406740610728 backwards is 82701604760482113
• The number of decimal digits it has is: 17
• The sum of 31128406740610728's digits is 60
• More coming soon!