18513603335421

Names of 18513603335421

• Cardinal: 18513603335421 can be written as Eighteen trillion, five hundred thirteen billion, six hundred three million, three hundred thirty-five thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 1.8513603335421 × 10¹³

Factors of 18513603335421

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 261

Divisors of 18513603335421

• Number of divisors d(n): 84
• Complete list of divisors:
  1 3 9 27 81 101 157 243 303 471 729 909 1413 2727 4239 8181 10201 12717 15857 24543 24649 30603 38151 47571 73629 73947 91809 114453 142713 221841 275427 428139 665523 826281 1030301 1284417 1601557 1996569 2478843 2489549 3090903 3853251 4804671 5989707 7436529 7468647 9272709 11559753 14414013 17969121 22405941 27818127 43242039 67217823 83454381 129726117 161757257 201653469 250363143 251444449 389178351 485271771 604960407 751089429 754333347 1167535053 1455815313 1814881221 2263000041 4367445939 6789000123 13102337817 20367000369 25395889349 39307013451 61101001107 76187668047 117921040353 183303003321 228563004141 685689012423 2057067037269 6171201111807 18513603335421
• Sum of all divisors σ(n): 28214989926804
• Sum of proper divisors (its aliquot sum) s(n): 9701386591383
• 18513603335421 is a deficient number, because the sum of its proper divisors (9701386591383) is less than itself. Its deficiency is 8812216744038

Bases of 18513603335421

• Binary: 100001101011010001000110000000001010011111101₂
• Hexadecimal: 0x10D688C014FD
• Base-36: 6K915F2T9

Squares and roots of 18513603335421

• 18513603335421 squared (18513603335421²) is 342753508461311576233247241
• 18513603335421 cubed (18513603335421³) is 6345602497476587943288165032451345823461
• The square root of 18513603335421 is 4302743.6985510769
• The cube root of 18513603335421 is 26454.3432823033

Scales and comparisons

• 18,513,603,335,421 seconds is equal to 588,675 years, 16 weeks, 4 days, 9 hours, 10 minutes, 21 seconds.
• To count from 1 to 18,513,603,335,421 would take you about one million, four hundred seventy-one thousand, six hundred eighty-eight 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 18513603335421 cubic inches would be around 2204.5 feet tall.

Recreational maths with 18513603335421

• 18513603335421 backwards is 12453330631581
• The number of decimal digits it has is: 14
• The sum of 18513603335421's digits is 45
• More coming soon!