18209127292209

Names of 18209127292209

• Cardinal: 18209127292209 can be written as Eighteen trillion, two hundred nine billion, one hundred twenty-seven million, two hundred ninety-two thousand, two hundred nine.

Scientific notation

• Scientific notation: 1.8209127292209 × 10¹³

Factors of 18209127292209

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 11772455

Divisors of 18209127292209

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 9 21 43 63 129 301 387 571 903 1713 2709 3997 5139 11991 24553 35973 73659 171871 220977 515613 1546839 11771831 35315493 82402817 105946479 247208451 506188733 741625353 1518566199 3543321131 4555698597 6721715501 10629963393 20165146503 31889890179 47052008507 60495439509 141156025521 289033766543 423468076563 867101299629 2023236365801 2601303898887 6069709097403 18209127292209
• Sum of all divisors σ(n): 30812440648704
• Sum of proper divisors (its aliquot sum) s(n): 12603313356495
• 18209127292209 is a deficient number, because the sum of its proper divisors (12603313356495) is less than itself. Its deficiency is 5605813935714

Bases of 18209127292209

• Binary: 100001000111110100100100100000101110100110001₂
• Hexadecimal: 0x108FA4905D31
• Base-36: 6GD5O8SA9

Squares and roots of 18209127292209

• 18209127292209 squared (18209127292209²) is 331572316743870668472099681
• 18209127292209 cubed (18209127292209³) is 6037642522161782577193063211552262685329
• The square root of 18209127292209 is 4267215.4026026153
• The cube root of 18209127292209 is 26308.5175764993

Scales and comparisons

• 18,209,127,292,209 seconds is equal to 578,993 years, 48 weeks, 2 hours, 30 minutes, 9 seconds.
• To count from 1 to 18,209,127,292,209 would take you about one million, four hundred forty-seven thousand, four 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 18209127292209 cubic inches would be around 2192.4 feet tall.

Recreational maths with 18209127292209

• 18209127292209 backwards is 90229272190281
• The number of decimal digits it has is: 14
• The sum of 18209127292209's digits is 54
• More coming soon!