20121072799728

Names of 20121072799728

• Cardinal: 20121072799728 can be written as Twenty trillion, one hundred twenty-one billion, seventy-two million, seven hundred ninety-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.0121072799728 × 10¹³

Factors of 20121072799728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 54608

Divisors of 20121072799728

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 1039 2078 3117 4156 6234 8312 9067 12468 16624 18134 24936 27201 36268 44497 49872 54402 72536 88994 108804 133491 145072 177988 217608 266982 355976 435216 533964 711952 1067928 2135856 9420613 18841226 28261839 37682452 46232383 56523678 75364904 92464766 113047356 138697149 150729808 184929532 226094712 277394298 369859064 403454299 452189424 554788596 739718128 806908598 1109577192 1210362897 1613817196 2219154384 2420725794 3227634392 4841451588 6455268784 9682903176 19365806352 419189016661 838378033322 1257567049983 1676756066644 2515134099966 3353512133288 5030268199932 6707024266576 10060536399864 20121072799728
• Sum of all divisors σ(n): 52036374141440
• Sum of proper divisors (its aliquot sum) s(n): 31915301341712
• 20121072799728 is an abundant number, because the sum of its proper divisors (31915301341712) is greater than itself. Its abundance is 11794228541984

Bases of 20121072799728

• Binary: 100100100110011001101011001011000111111110000₂
• Hexadecimal: 0x124CCD658FF0
• Base-36: 74RHR8FLC

Squares and roots of 20121072799728

• 20121072799728 squared (20121072799728²) is 404857570611953976396873984
• 20121072799728 cubed (20121072799728³) is 8146168651804145250124531642910085476352
• The square root of 20121072799728 is 4485651.8812462475
• The cube root of 20121072799728 is 27198.8396995169

Scales and comparisons

• 20,121,072,799,728 seconds is equal to 639,787 years, 45 weeks, 4 days, 48 minutes, 48 seconds.
• To count from 1 to 20,121,072,799,728 would take you about one million, five hundred ninety-nine thousand, four hundred sixty-nine 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 20121072799728 cubic inches would be around 2266.6 feet tall.

Recreational maths with 20121072799728

• 20121072799728 backwards is 82799727012102
• The number of decimal digits it has is: 14
• The sum of 20121072799728's digits is 57
• More coming soon!