21422181337891489

Names of 21422181337891489

• Cardinal: 21422181337891489 can be written as Twenty-one quadrillion, four hundred twenty-two trillion, one hundred eighty-one billion, three hundred thirty-seven million, eight hundred ninety-one thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 2.1422181337891489 × 10¹⁶

Factors of 21422181337891489

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 48

Divisors of 21422181337891489

• Number of divisors d(n): 49
• Complete list of divisors:
  1 17 31 289 527 961 4913 8959 16337 29791 83521 152303 277729 506447 923521 1419857 2589151 4721393 8609599 15699857 24137569 28629151 44015567 80263681 146363183 266897569 486695567 748264639 887503681 1364482577 2488174111 4537258673 8273824639 15087562577 23196203809 42298959887 77133397441 140655018863 256488563809 719082318079 1311267756497 2391135320671 4360305584753 22291551860449 40649300451407 74125194940801 691038107673919 1260128313993617 21422181337891489
• Sum of all divisors σ(n): 23519769869053879
• Sum of proper divisors (its aliquot sum) s(n): 2097588531162390
• 21422181337891489 is a deficient number, because the sum of its proper divisors (2097588531162390) is less than itself. Its deficiency is 19324592806729099

Bases of 21422181337891489

• Binary: 1001100000110110101110001000100111101011000001010100001₂
• Hexadecimal: 0x4C1B5C44F582A1
• Base-36: 5UXJ28W8YW1

Squares and roots of 21422181337891489

• 21422181337891489 squared (21422181337891489²) is 458909853273506385605676338637121
• 21422181337891489 cubed (21422181337891489³) is 9830850094570229936457190037011844295066045363169
• 21422181337891489 is a perfect square number. Its square root is 146363183
• 21422181337891489 is a perfect cube number. Its cube root is 277729
• Being both a perfect square and a perfect cube, 21422181337891489 is also a perfect sixth number.

Scales and comparisons

• 21,422,181,337,891,489 seconds is equal to 681,159,103 years, 20 weeks, 1 day, 4 minutes, 49 seconds.
• To count from 1 to 21,422,181,337,891,489 would take you about two billion, forty-three million, four hundred seventy-seven thousand, three hundred ten 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 21422181337891489 cubic inches would be around 23144.1 feet tall.

Recreational maths with 21422181337891489

• 21422181337891489 backwards is 98419873318122412
• The number of decimal digits it has is: 17
• The sum of 21422181337891489's digits is 73
• More coming soon!