91621193121

Names of 91621193121

• Cardinal: 91621193121 can be written as Ninety-one billion, six hundred twenty-one million, one hundred ninety-three thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 9.1621193121 × 10¹⁰

Factors of 91621193121

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1123

Divisors of 91621193121

• Number of divisors d(n): 112
• Complete list of divisors:
  1 3 9 19 27 53 57 81 137 159 171 243 411 477 513 729 911 1007 1233 1431 1539 2603 2733 3021 3699 4293 4617 7261 7809 8199 9063 11097 12879 13851 17309 21783 23427 24597 27189 33291 38637 48283 51927 65349 70281 73791 81567 99873 124807 137959 144849 155781 196047 210843 221373 244701 374421 413877 434547 467343 588141 632529 664119 734103 917377 1123263 1241631 1303641 1402029 1764423 1897587 2371333 2752131 3369789 3724893 3910923 4206087 5293269 6614771 7113999 8256393 10109367 11174679 11732769 12618261 19844313 21341997 24769179 30328101 33524037 35198307 59532939 64025991 74307537 90984303 100572111 125680649 178598817 192077973 222922611 377041947 535796451 576233919 668767833 1131125841 1607389353 1728701757 3393377523 4822168059 10180132569 30540397707 91621193121
• Sum of all divisors σ(n): 148565456640
• Sum of proper divisors (its aliquot sum) s(n): 56944263519
• 91621193121 is a deficient number, because the sum of its proper divisors (56944263519) is less than itself. Its deficiency is 34676929602

Bases of 91621193121

• Binary: 1010101010101000011000111010110100001₂
• Hexadecimal: 0x15550C75A1
• Base-36: 1638W529

Squares and roots of 91621193121

• 91621193121 squared (91621193121²) is 8394443028915577720641
• 91621193121 cubed (91621193121³) is 769108885895506333548134048910561
• The square root of 91621193121 is 302689.9290049143
• The cube root of 91621193121 is 4508.1530076273

Scales and comparisons

• 91,621,193,121 seconds is equal to 2,913 years, 14 weeks, 11 hours, 25 minutes, 21 seconds.
• To count from 1 to 91,621,193,121 would take you about five thousand, eight hundred twenty-six 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 91621193121 cubic inches would be around 375.7 feet tall.

Recreational maths with 91621193121

• 91621193121 backwards is 12139112619
• The number of decimal digits it has is: 11
• The sum of 91621193121's digits is 36
• More coming soon!