1218180666978

Names of 1218180666978

• Cardinal: 1218180666978 can be written as One trillion, two hundred eighteen billion, one hundred eighty million, six hundred sixty-six thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 1.218180666978 × 10¹²

Factors of 1218180666978

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 873218

Divisors of 1218180666978

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 11 18 22 33 66 99 121 198 242 363 641 726 1089 1282 1923 2178 3846 5769 7051 11538 14102 21153 42306 63459 77561 126918 155122 232683 465366 698049 872561 1396098 1745122 2617683 5235366 7853049 9598171 15706098 19196342 28794513 57589026 86383539 105579881 172767078 211159762 316739643 559311601 633479286 950218929 1118623202 1677934803 1900437858 3355869606 5033804409 6152427611 10067608818 12304855222 18457282833 36914565666 55371848499 67676703721 110743696998 135353407442 203030111163 406060222326 609090333489 1218180666978
• Sum of all divisors σ(n): 2905678578348
• Sum of proper divisors (its aliquot sum) s(n): 1687497911370
• 1218180666978 is an abundant number, because the sum of its proper divisors (1687497911370) is greater than itself. Its abundance is 469317244392

Bases of 1218180666978

• Binary: 10001101110100001001110011101011001100010₂
• Hexadecimal: 0x11BA139D662
• Base-36: FJMHBECI

Squares and roots of 1218180666978

• 1218180666978 squared (1218180666978²) is 1483964137398964939652484
• 1218180666978 cubed (1218180666978³) is 1807736422668103544272700478654473352
• The square root of 1218180666978 is 1103712.2210875441
• The cube root of 1218180666978 is 10679.9831524057

Scales and comparisons

• 1,218,180,666,978 seconds is equal to 38,734 years, 19 weeks, 4 days, 6 hours, 36 minutes, 18 seconds.
• To count from 1 to 1,218,180,666,978 would take you about ninety-six thousand, eight hundred thirty-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 1218180666978 cubic inches would be around 890 feet tall.

Recreational maths with 1218180666978

• 1218180666978 backwards is 8796660818121
• The number of decimal digits it has is: 13
• The sum of 1218180666978's digits is 63
• More coming soon!