12729382890

Names of 12729382890

• Cardinal: 12729382890 can be written as Twelve billion, seven hundred twenty-nine million, three hundred eighty-two thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.272938289 × 10¹⁰

Factors of 12729382890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2635523

Divisors of 12729382890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 23 30 35 42 46 69 70 105 115 138 161 210 230 322 345 483 690 805 966 1610 2415 4830 2635483 5270966 7906449 13177415 15812898 18448381 26354830 36896762 39532245 55345143 60616109 79064490 92241905 110690286 121232218 181848327 184483810 276725715 303080545 363696654 424312763 553451430 606161090 848625526 909241635 1272938289 1818483270 2121563815 2545876578 4243127630 6364691445 12729382890
• Sum of all divisors σ(n): 36432930816
• Sum of proper divisors (its aliquot sum) s(n): 23703547926
• 12729382890 is an abundant number, because the sum of its proper divisors (23703547926) is greater than itself. Its abundance is 10974165036

Bases of 12729382890

• Binary: 1011110110101110101111011111101010₂
• Hexadecimal: 0x2F6BAF7EA
• Base-36: 5UIQUP6

Squares and roots of 12729382890

• 12729382890 squared (12729382890²) is 162037188760224752100
• 12729382890 cubed (12729382890³) is 2062633418148105271936231569000
• The square root of 12729382890 is 112824.5668726453
• The cube root of 12729382890 is 2334.9044702591

Scales and comparisons

• 12,729,382,890 seconds is equal to 404 years, 39 weeks, 1 day, 19 hours, 41 minutes, 30 seconds.
• To count from 1 to 12,729,382,890 would take you about eight hundred 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 12729382890 cubic inches would be around 194.6 feet tall.

Recreational maths with 12729382890

• 12729382890 backwards is 09828392721
• The number of decimal digits it has is: 11
• The sum of 12729382890's digits is 51
• More coming soon!