12642921288

Names of 12642921288

• Cardinal: 12642921288 can be written as Twelve billion, six hundred forty-two million, nine hundred twenty-one thousand, two hundred eighty-eight.

Scientific notation

• Scientific notation: 1.2642921288 × 10¹⁰

Factors of 12642921288

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 40555

Divisors of 12642921288

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 487 648 974 1461 1948 2922 3896 4383 5844 8766 11688 13149 17532 26298 35064 39447 40063 52596 78894 80126 105192 120189 157788 160252 240378 315576 320504 360567 480756 721134 961512 1081701 1442268 2163402 2884536 3245103 4326804 6490206 8653608 12980412 19510681 25960824 39021362 58532043 78042724 117064086 156085448 175596129 234128172 351192258 468256344 526788387 702384516 1053576774 1404769032 1580365161 2107153548 3160730322 4214307096 6321460644 12642921288
• Sum of all divisors σ(n): 35485486080
• Sum of proper divisors (its aliquot sum) s(n): 22842564792
• 12642921288 is an abundant number, because the sum of its proper divisors (22842564792) is greater than itself. Its abundance is 10199643504

Bases of 12642921288

• Binary: 1011110001100100111010101101001000₂
• Hexadecimal: 0x2F193AB48
• Base-36: 5T39OI0

Squares and roots of 12642921288

• 12642921288 squared (12642921288²) is 159843458694563578944
• 12642921288 cubed (12642921288³) is 2020888266677046562100566159872
• The square root of 12642921288 is 112440.7456752223
• The cube root of 12642921288 is 2329.6060099969

Scales and comparisons

• 12,642,921,288 seconds is equal to 402 years, 2 days, 2 hours, 34 minutes, 48 seconds.
• To count from 1 to 12,642,921,288 would take you about eight hundred 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 12642921288 cubic inches would be around 194.1 feet tall.

Recreational maths with 12642921288

• 12642921288 backwards is 88212924621
• The number of decimal digits it has is: 11
• The sum of 12642921288's digits is 45
• More coming soon!