1812138042740

Names of 1812138042740

• Cardinal: 1812138042740 can be written as One trillion, eight hundred twelve billion, one hundred thirty-eight million, forty-two thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.81213804274 × 10¹²

Factors of 1812138042740

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10600

Divisors of 1812138042740

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 19 20 38 43 76 86 95 172 190 215 380 430 817 860 1634 3268 4085 8170 10531 16340 21062 42124 52655 105310 200089 210620 400178 452833 800356 905666 1000445 1811332 2000890 2264165 4001780 4528330 8603827 9056660 17207654 34415308 43019135 86038270 110901961 172076540 221803922 443607844 554509805 1109019610 2107137259 2218039220 4214274518 4768784323 8428549036 9537568646 10535686295 19075137292 21071372590 23843921615 42142745180 47687843230 90606902137 95375686460 181213804274 362427608548 453034510685 906069021370 1812138042740
• Sum of all divisors σ(n): 4099325741280
• Sum of proper divisors (its aliquot sum) s(n): 2287187698540
• 1812138042740 is an abundant number, because the sum of its proper divisors (2287187698540) is greater than itself. Its abundance is 475049655800

Bases of 1812138042740

• Binary: 11010010111101011110110000010010101110100₂
• Hexadecimal: 0x1A5EBD82574
• Base-36: N4HG7ALW

Squares and roots of 1812138042740

• 1812138042740 squared (1812138042740²) is 3283844285945558066707600
• 1812138042740 cubed (1812138042740³) is 5950779156996316485200528619882824000
• The square root of 1812138042740 is 1346156.7675200389
• The cube root of 1812138042740 is 12191.6857324753

Scales and comparisons

• 1,812,138,042,740 seconds is equal to 57,620 years, 19 weeks, 6 days, 22 hours, 32 minutes, 20 seconds.
• To count from 1 to 1,812,138,042,740 would take you about one hundred forty-four thousand and fifty 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 1812138042740 cubic inches would be around 1016 feet tall.

Recreational maths with 1812138042740

• 1812138042740 backwards is 0472408312181
• The number of decimal digits it has is: 13
• The sum of 1812138042740's digits is 41
• More coming soon!