12388982890

Names of 12388982890

• Cardinal: 12388982890 can be written as Twelve billion, three hundred eighty-eight million, nine hundred eighty-two thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.238898289 × 10¹⁰

Factors of 12388982890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1663

Divisors of 12388982890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 23 46 115 163 230 277 326 554 815 1193 1385 1630 2386 2770 3749 5965 6371 7498 11930 12742 18745 27439 31855 37490 45151 54878 63710 90302 137195 194459 225755 274390 330461 388918 451510 660922 972295 1038473 1652305 1944590 2076946 3304610 4472557 5192365 7600603 8945114 10384730 15201206 22362785 38003015 44725570 53865143 76006030 107730286 269325715 538651430 1238898289 2477796578 6194491445 12388982890
• Sum of all divisors σ(n): 23516718336
• Sum of proper divisors (its aliquot sum) s(n): 11127735446
• 12388982890 is a deficient number, because the sum of its proper divisors (11127735446) is less than itself. Its deficiency is 1261247444

Bases of 12388982890

• Binary: 1011100010011100001110000001101010₂
• Hexadecimal: 0x2E270E06A
• Base-36: 5OW2WDM

Squares and roots of 12388982890

• 12388982890 squared (12388982890²) is 153486897048712752100
• 12388982890 cubed (12388982890³) is 1901546541375693782291711569000
• The square root of 12388982890 is 111305.8079796377
• The cube root of 12388982890 is 2313.9033653317

Scales and comparisons

• 12,388,982,890 seconds is equal to 393 years, 48 weeks, 3 days, 8 minutes, 10 seconds.
• To count from 1 to 12,388,982,890 would take you about seven hundred eighty-seven 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 12388982890 cubic inches would be around 192.8 feet tall.

Recreational maths with 12388982890

• 12388982890 backwards is 09828988321
• The number of decimal digits it has is: 11
• The sum of 12388982890's digits is 58
• More coming soon!