18121137997809702

Names of 18121137997809702

• Cardinal: 18121137997809702 can be written as Eighteen quadrillion, one hundred twenty-one trillion, one hundred thirty-seven billion, nine hundred ninety-seven million, eight hundred nine thousand, seven hundred two.

Scientific notation

• Scientific notation: 1.8121137997809702 × 10¹⁶

Factors of 18121137997809702

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 96052

Divisors of 18121137997809702

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 17 34 51 102 139 278 417 834 2363 4726 7089 14178 19321 38642 57963 95891 115926 191782 287673 328457 575346 656914 985371 1630147 1970742 3260294 4890441 9780882 13328849 26657698 39986547 79973094 226590433 453180866 679771299 1359542598 1852710011 3705420022 5558130033 9195083881 11116260066 18390167762 27585251643 31496070187 55170503286 62992140374 94488210561 156316425977 188976421122 312632851954 468949277931 937898555862 1278116659459 2556233318918 3834349978377 7668699956754 21727983210803 43455966421606 65183949632409 130367899264818 177658215664801 355316431329602 532974646994403 1065949293988806 3020189666301617 6040379332603234 9060568998904851 18121137997809702
• Sum of all divisors σ(n): 38652637009468248
• Sum of proper divisors (its aliquot sum) s(n): 20531499011658546
• 18121137997809702 is an abundant number, because the sum of its proper divisors (20531499011658546) is greater than itself. Its abundance is 2410361013848844

Bases of 18121137997809702

• Binary: 1000000011000010001010000111001010010010000100000100110₂
• Hexadecimal: 0x40611439490826
• Base-36: 4YFENVDZ76U

Squares and roots of 18121137997809702

• 18121137997809702 squared (18121137997809702²) is 328375642335662615366549405328804
• 18121137997809702 cubed (18121137997809702³) is 5950540329883944061841645202669070229559131256408
• The square root of 18121137997809702 is 134614776.2981824443
• The cube root of 18121137997809702 is 262660.7354093807

Scales and comparisons

• 18,121,137,997,809,702 seconds is equal to 576,196,135 years, 50 weeks, 3 days, 4 hours, 1 minute, 42 seconds.
• To count from 1 to 18,121,137,997,809,702 would take you about one billion, seven hundred twenty-eight million, five hundred eighty-eight thousand, four hundred seven 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 18121137997809702 cubic inches would be around 21888.4 feet tall.

Recreational maths with 18121137997809702

• 18121137997809702 backwards is 20790879973112181
• The number of decimal digits it has is: 17
• The sum of 18121137997809702's digits is 75
• More coming soon!