161731140612874816

Names of 161731140612874816

• Cardinal: 161731140612874816 can be written as One hundred sixty-one quadrillion, seven hundred thirty-one trillion, one hundred forty billion, six hundred twelve million, eight hundred seventy-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.61731140612874816 × 10¹⁷

Factors of 161731140612874816

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2645798

Divisors of 161731140612874816

• Number of divisors d(n): 63
• Complete list of divisors:
  1 2 4 8 16 19 32 38 64 76 152 304 361 608 722 1216 1444 2888 5776 11552 23104 2645777 5291554 10583108 21166216 42332432 50269763 84664864 100539526 169329728 201079052 402158104 804316208 955125497 1608632416 1910250994 3217264832 3820501988 7641003976 15282007952 30564015904 61128031808 7000135933729 14000271867458 28000543734916 56001087469832 112002174939664 133002582740851 224004349879328 266005165481702 448008699758656 532010330963404 1064020661926808 2128041323853616 2527049072076169 4256082647707232 5054098144152338 8512165295414464 10108196288304676 20216392576609352 40432785153218704 80865570306437408 161731140612874816
• Sum of all divisors σ(n): 338715705446605209
• Sum of proper divisors (its aliquot sum) s(n): 176984564833730393
• 161731140612874816 is an abundant number, because the sum of its proper divisors (176984564833730393) is greater than itself. Its abundance is 15253424220855577

Bases of 161731140612874816

• Binary: 1000111110100101011001110110010001010110010110001001000000₂
• Hexadecimal: 0x23E959D91596240
• Base-36: 188GWKAQLLJ4

Squares and roots of 161731140612874816

• 161731140612874816 squared (161731140612874816²) is 26156961843941485713556020087033856
• 161731140612874816 cubed (161731140612874816³) is 4230395273988101754971787354001159266009018481770496
• 161731140612874816 is a perfect square number. Its square root is 402158104
• The cube root of 161731140612874816 is 544834.4368320987

Scales and comparisons

• 161,731,140,612,874,816 seconds is equal to 5,142,550,004 years, 11 weeks, 4 days, 21 hours, 40 minutes, 16 seconds.
• To count from 1 to 161,731,140,612,874,816 would take you about fifteen billion, four hundred twenty-seven million, six hundred fifty thousand and twelve 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 161731140612874816 cubic inches would be around 45402.9 feet tall.

Recreational maths with 161731140612874816

• 161731140612874816 backwards is 618478216041137161
• The number of decimal digits it has is: 18
• The sum of 161731140612874816's digits is 67
• More coming soon!