12987544400

Names of 12987544400

• Cardinal: 12987544400 can be written as Twelve billion, nine hundred eighty-seven million, five hundred forty-four thousand, four hundred.

Scientific notation

• Scientific notation: 1.29875444 × 10¹⁰

Factors of 12987544400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 112373

Divisors of 12987544400

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 136 170 200 272 289 340 400 425 578 680 850 1156 1360 1445 1700 2312 2890 3400 4624 5780 6800 7225 11560 14450 23120 28900 57800 112349 115600 224698 449396 561745 898792 1123490 1797584 1909933 2246980 2808725 3819866 4493960 5617450 7639732 8987920 9549665 11234900 15279464 19099330 22469800 30558928 32468861 38198660 44939600 47748325 64937722 76397320 95496650 129875444 152794640 162344305 190993300 259750888 324688610 381986600 519501776 649377220 763973200 811721525 1298754440 1623443050 2597508880 3246886100 6493772200 12987544400
• Sum of all divisors σ(n): 33146283450
• Sum of proper divisors (its aliquot sum) s(n): 20158739050
• 12987544400 is an abundant number, because the sum of its proper divisors (20158739050) is greater than itself. Its abundance is 7171194650

Bases of 12987544400

• Binary: 1100000110000111100011001101010000₂
• Hexadecimal: 0x3061E3350
• Base-36: 5YSG5E8

Squares and roots of 12987544400

• 12987544400 squared (12987544400²) is 168676309541971360000
• 12987544400 cubed (12987544400³) is 2190691059404496701528384000000
• The square root of 12987544400 is 113962.9080008053
• The cube root of 12987544400 is 2350.5834917483

Scales and comparisons

• 12,987,544,400 seconds is equal to 412 years, 50 weeks, 19 hours, 13 minutes, 20 seconds.
• To count from 1 to 12,987,544,400 would take you about eight hundred twenty-five 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 12987544400 cubic inches would be around 195.9 feet tall.

Recreational maths with 12987544400

• 12987544400 backwards is 00444578921
• The number of decimal digits it has is: 11
• The sum of 12987544400's digits is 44
• More coming soon!