18021681444844

Names of 18021681444844

• Cardinal: 18021681444844 can be written as Eighteen trillion, twenty-one billion, six hundred eighty-one million, four hundred forty-four thousand, eight hundred forty-four.

Scientific notation

• Scientific notation: 1.8021681444844 × 10¹³

Factors of 18021681444844

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 510476

Divisors of 18021681444844

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 7 11 14 22 28 44 77 154 308 173807 336649 347614 673298 695228 1216649 1346596 1911877 2356543 2433298 3703139 3823754 4713086 4866596 7406278 7647508 9426172 13383139 14812556 25921973 26766278 51843946 53532556 103687892 58511952743 117023905486 234047810972 409583669201 643631480173 819167338402 1287262960346 1638334676804 2574525920692 4505420361211 9010840722422 18021681444844
• Sum of all divisors σ(n): 39320375270400
• Sum of proper divisors (its aliquot sum) s(n): 21298693825556
• 18021681444844 is an abundant number, because the sum of its proper divisors (21298693825556) is greater than itself. Its abundance is 3277012380712

Bases of 18021681444844

• Binary: 100000110001111111111111010111011011111101100₂
• Hexadecimal: 0x1063FFEBB7EC
• Base-36: 6DZ1NTQSS

Squares and roots of 18021681444844

• 18021681444844 squared (18021681444844²) is 324781002099434523414184336
• 18021681444844 cubed (18021681444844³) is 5853099759173219359278312112248232763584
• The square root of 18021681444844 is 4245195.1009163289
• The cube root of 18021681444844 is 26217.9322126369

Scales and comparisons

• 18,021,681,444,844 seconds is equal to 573,033 years, 37 weeks, 4 days, 23 hours, 34 minutes, 4 seconds.
• To count from 1 to 18,021,681,444,844 would take you about one million, four hundred thirty-two thousand, five hundred eighty-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 18021681444844 cubic inches would be around 2184.8 feet tall.

Recreational maths with 18021681444844

• 18021681444844 backwards is 44844418612081
• The number of decimal digits it has is: 14
• The sum of 18021681444844's digits is 55
• More coming soon!