18640509438123001

Names of 18640509438123001

• Cardinal: 18640509438123001 can be written as Eighteen quadrillion, six hundred forty trillion, five hundred nine billion, four hundred thirty-eight million, one hundred twenty-three thousand and one.

Scientific notation

• Scientific notation: 1.8640509438123001 × 10¹⁶

Factors of 18640509438123001

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 954781

Divisors of 18640509438123001

• Number of divisors d(n): 27
• Complete list of divisors:
  1 11 13 121 143 169 1573 1859 20449 954757 10502327 12411841 115525597 136530251 161353933 1501832761 1774893263 19523825893 911560929049 10027170219539 11850292077637 110298872414929 130353212854007 154053797009281 1433885341394077 1694591767102091 18640509438123001
• Sum of all divisors σ(n): 22186504689978573
• Sum of proper divisors (its aliquot sum) s(n): 3545995251855572
• 18640509438123001 is a deficient number, because the sum of its proper divisors (3545995251855572) is less than itself. Its deficiency is 15094514186267429

Bases of 18640509438123001

• Binary: 1000010001110010111000111001111011111011101101111111001₂
• Hexadecimal: 0x423971CF7DDBF9
• Base-36: 53JIBTFRM61

Squares and roots of 18640509438123001

• 18640509438123001 squared (18640509438123001²) is 347468592112752678446782005246001
• 18640509438123001 cubed (18640509438123001³) is 6476991570729077647045479841718279785684701369001
• 18640509438123001 is a perfect square number. Its square root is 136530251
• The cube root of 18640509438123001 is 265146.5165237441

Scales and comparisons

• 18,640,509,438,123,001 seconds is equal to 592,710,541 years, 13 weeks, 7 hours, 30 minutes, 1 second.
• To count from 1 to 18,640,509,438,123,001 would take you about one billion, seven hundred seventy-eight million, one hundred thirty-one thousand, six hundred twenty-three 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 18640509438123001 cubic inches would be around 22095.5 feet tall.

Recreational maths with 18640509438123001

• 18640509438123001 backwards is 10032183490504681
• The number of decimal digits it has is: 17
• The sum of 18640509438123001's digits is 55
• More coming soon!