18365865853940337121

Names of 18365865853940337121

• Cardinal: 18365865853940337121 can be written as Eighteen quintillion, three hundred sixty-five quadrillion, eight hundred sixty-five trillion, eight hundred fifty-three billion, nine hundred forty million, three hundred thirty-seven thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 1.8365865853940337121 × 10¹⁹

Factors of 18365865853940337121

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 18039

Divisors of 18365865853940337121

• Number of divisors d(n): 27
• Complete list of divisors:
  1 269 947 16823 72361 254743 896809 4525387 15931381 68525867 241241621 283013329 1217329103 4285541489 15087017807 64893996049 76130585501 268013622563 1152810660541 4058407790083 20479127499769 72095664469447 253808900567161 1091711695532327 19393733742281243 68274594252566309 18365865853940337121
• Sum of all divisors σ(n): 18454977918784276051
• Sum of proper divisors (its aliquot sum) s(n): 89112064843938930
• 18365865853940337121 is a deficient number, because the sum of its proper divisors (89112064843938930) is less than itself. Its deficiency is 18276753789096398191

Bases of 18365865853940337121

• Binary: 1111111011100000101010011011000000001000100101110000100111100001₂
• Hexadecimal: 0xFEE0A9B0089709E1
• Base-36: 3VJ9O3CXRYAQP

Squares and roots of 18365865853940337121

• 18365865853940337121 squared (18365865853940337121²) is 337305028564931628451648692327130568641
• 18365865853940337121 cubed (18365865853940337121³) is 6194898906483047827719388549023015435122523264879970822561
• 18365865853940337121 is a perfect square number. Its square root is 4285541489
• The cube root of 18365865853940337121 is 2638378.7228424455

Scales and comparisons

• 18,365,865,853,940,337,121 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,365,865,853,940,337,121 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 18365865853940337121 cubic inches would be around 219864.9 feet tall.

Recreational maths with 18365865853940337121

• 18365865853940337121 backwards is 12173304935856856381
• The number of decimal digits it has is: 20
• The sum of 18365865853940337121's digits is 88
• More coming soon!