18153884920

Names of 18153884920

• Cardinal: 18153884920 can be written as Eighteen billion, one hundred fifty-three million, eight hundred eighty-four thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.815388492 × 10¹⁰

Factors of 18153884920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7812

Divisors of 18153884920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 71 142 284 355 568 710 941 1420 1882 2840 3764 4705 6793 7528 9410 13586 18820 27172 33965 37640 54344 66811 67930 133622 135860 267244 271720 334055 482303 534488 668110 964606 1336220 1929212 2411515 2672440 3858424 4823030 6392213 9646060 12784426 19292120 25568852 31961065 51137704 63922130 127844260 255688520 453847123 907694246 1815388492 2269235615 3630776984 4538471230 9076942460 18153884920
• Sum of all divisors σ(n): 41471663040
• Sum of proper divisors (its aliquot sum) s(n): 23317778120
• 18153884920 is an abundant number, because the sum of its proper divisors (23317778120) is greater than itself. Its abundance is 5163893200

Bases of 18153884920

• Binary: 10000111010000011100100110011111000₂
• Hexadecimal: 0x43A0E4CF8
• Base-36: 8C8CR94

Squares and roots of 18153884920

• 18153884920 squared (18153884920²) is 329563537688603406400
• 18153884920 cubed (18153884920³) is 5982858537026989035305591488000
• The square root of 18153884920 is 134736.3533720575
• The cube root of 18153884920 is 2628.1885930265

Scales and comparisons

• 18,153,884,920 seconds is equal to 577 years, 12 weeks, 2 days, 9 hours, 48 minutes, 40 seconds.
• To count from 1 to 18,153,884,920 would take you about one thousand, one hundred fifty-four 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 18153884920 cubic inches would be around 219 feet tall.

Recreational maths with 18153884920

• 18153884920 backwards is 02948835181
• The number of decimal digits it has is: 11
• The sum of 18153884920's digits is 49
• More coming soon!