18130521849

Names of 18130521849

• Cardinal: 18130521849 can be written as Eighteen billion, one hundred thirty million, five hundred twenty-one thousand, eight hundred forty-nine.

Scientific notation

• Scientific notation: 1.8130521849 × 10¹⁰

Factors of 18130521849

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1278

Divisors of 18130521849

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 11 33 43 73 129 181 219 473 543 803 967 1419 1991 2409 2901 3139 5973 7783 9417 10637 13213 23349 31911 34529 39639 41581 70591 85613 103587 124743 145343 175027 211773 256839 436029 457391 525081 568159 776501 1372173 1704477 1925297 2329503 3035413 5775891 6249749 7526161 9106239 12776971 18749247 22578483 33389543 38330913 82787771 100168629 140546681 248363313 421640043 549409753 1648229259 6043507283 18130521849
• Sum of all divisors σ(n): 27534194688
• Sum of proper divisors (its aliquot sum) s(n): 9403672839
• 18130521849 is a deficient number, because the sum of its proper divisors (9403672839) is less than itself. Its deficiency is 8726849010

Bases of 18130521849

• Binary: 10000111000101010011100111011111001₂
• Hexadecimal: 0x438A9CEF9
• Base-36: 8BUG06X

Squares and roots of 18130521849

• 18130521849 squared (18130521849²) is 328715822517066378801
• 18130521849 cubed (18130521849³) is 5959789402257678156234840923049
• The square root of 18130521849 is 134649.6262490171
• The cube root of 18130521849 is 2627.0606633589

Scales and comparisons

• 18,130,521,849 seconds is equal to 576 years, 25 weeks, 5 days, 4 minutes, 9 seconds.
• To count from 1 to 18,130,521,849 would take you about one thousand, one hundred fifty-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 18130521849 cubic inches would be around 218.9 feet tall.

Recreational maths with 18130521849

• 18130521849 backwards is 94812503181
• The number of decimal digits it has is: 11
• The sum of 18130521849's digits is 42
• More coming soon!