18444720164

Names of 18444720164

• Cardinal: 18444720164 can be written as Eighteen billion, four hundred forty-four million, seven hundred twenty thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 1.8444720164 × 10¹⁰

Factors of 18444720164

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 267

Divisors of 18444720164

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 13 26 52 53 106 169 199 212 338 398 676 689 796 1378 2197 2587 2756 4394 5174 8788 8957 10348 10547 17914 21094 33631 35828 39601 42188 67262 79202 116441 134524 137111 158404 232882 274222 437203 465764 514813 548444 874406 1029626 1748812 1782443 2059252 2098853 3564886 4197706 6692569 7129772 8395412 13385138 23171759 26770276 27285089 46343518 54570178 87003397 92687036 109140356 174006794 348013588 354706157 709412314 1418824628 4611180041 9222360082 18444720164
• Sum of all divisors σ(n): 35806571640
• Sum of proper divisors (its aliquot sum) s(n): 17361851476
• 18444720164 is a deficient number, because the sum of its proper divisors (17361851476) is less than itself. Its deficiency is 1082868688

Bases of 18444720164

• Binary: 10001001011011001000001100000100100₂
• Hexadecimal: 0x44B641824
• Base-36: 8H1ID5W

Squares and roots of 18444720164

• 18444720164 squared (18444720164²) is 340207701928268186896
• 18444720164 cubed (18444720164³) is 6275035859704429908440371770944
• The square root of 18444720164 is 135811.3403365123
• The cube root of 18444720164 is 2642.1493135545

Scales and comparisons

• 18,444,720,164 seconds is equal to 586 years, 25 weeks, 1 day, 13 hours, 22 minutes, 44 seconds.
• To count from 1 to 18,444,720,164 would take you about one thousand, one hundred seventy-two 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 18444720164 cubic inches would be around 220.2 feet tall.

Recreational maths with 18444720164

• 18444720164 backwards is 46102744481
• The number of decimal digits it has is: 11
• The sum of 18444720164's digits is 41
• More coming soon!