12905085397904

Names of 12905085397904

• Cardinal: 12905085397904 can be written as Twelve trillion, nine hundred five billion, eighty-five million, three hundred ninety-seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 1.2905085397904 × 10¹³

Factors of 12905085397904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 34002801

Divisors of 12905085397904

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 7 8 14 16 28 56 112 3389 6778 13556 23723 27112 47446 54224 94892 189784 379568 33999403 67998806 135997612 237995821 271995224 475991642 543990448 951983284 1903966568 3807933136 115223976767 230447953534 460895907068 806567837369 921791814136 1613135674738 1843583628272 3226271349476 6452542698952 12905085397904
• Sum of all divisors σ(n): 28583978930880
• Sum of proper divisors (its aliquot sum) s(n): 15678893532976
• 12905085397904 is an abundant number, because the sum of its proper divisors (15678893532976) is greater than itself. Its abundance is 2773808135072

Bases of 12905085397904

• Binary: 10111011110010110011000001111110101110010000₂
• Hexadecimal: 0xBBCB307EB90
• Base-36: 4KOIIN9U8

Squares and roots of 12905085397904

• 12905085397904 squared (12905085397904²) is 166541229127195042007593216
• 12905085397904 cubed (12905085397904³) is 2149228784158349063313977092892731019264
• The square root of 12905085397904 is 3592364.8753855725
• The cube root of 12905085397904 is 23455.9824271291

Scales and comparisons

• 12,905,085,397,904 seconds is equal to 410,341 years, 41 weeks, 3 days, 7 hours, 51 minutes, 44 seconds.
• To count from 1 to 12,905,085,397,904 would take you about one million, twenty-five thousand, eight hundred fifty-four 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 12905085397904 cubic inches would be around 1954.7 feet tall.

Recreational maths with 12905085397904

• 12905085397904 backwards is 40979358050921
• The number of decimal digits it has is: 14
• The sum of 12905085397904's digits is 62
• More coming soon!