1998542479013721

Names of 1998542479013721

• Cardinal: 1998542479013721 can be written as One quadrillion, nine hundred ninety-eight trillion, five hundred forty-two billion, four hundred seventy-nine million, thirteen thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 1.998542479013721 × 10¹⁵

Factors of 1998542479013721

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5947

Divisors of 1998542479013721

• Number of divisors d(n): 63
• Complete list of divisors:
  1 3 9 27 81 243 293 729 879 2637 5651 7911 16953 23733 50859 71199 85849 152577 213597 257547 457731 772641 1373193 1655743 2317923 4119579 4967229 6953769 14901687 20861307 31933801 44705061 62583921 95801403 134115183 287404209 402345549 485132699 862212627 1207036647 1455398097 2586637881 4366194291 7759913643 9356603693 13098582873 23279740929 28069811079 39295748619 84209433237 117887245857 252628299711 353661737571 757884899133 2273654697399 2741484882049 6820964092197 8224454646147 24673363938441 74020091815323 222060275445969 666180826337907 1998542479013721
• Sum of all divisors σ(n): 3007236807658447
• Sum of proper divisors (its aliquot sum) s(n): 1008694328644726
• 1998542479013721 is a deficient number, because the sum of its proper divisors (1008694328644726) is less than itself. Its deficiency is 989848150368995

Bases of 1998542479013721

• Binary: 111000110011010100111101110100001111011011101011001₂
• Hexadecimal: 0x719A9EE87B759
• Base-36: JOF9QN60K9

Squares and roots of 1998542479013721

• 1998542479013721 squared (1998542479013721²) is 3994172040422309443708906265841
• 1998542479013721 cubed (1998542479013721³) is 7982522491272894557101742990789635062712604361
• 1998542479013721 is a perfect square number. Its square root is 44705061
• The cube root of 1998542479013721 is 125961.4915288011

Scales and comparisons

• 1,998,542,479,013,721 seconds is equal to 63,547,468 years, 48 weeks, 4 days, 6 hours, 55 minutes, 21 seconds.
• To count from 1 to 1,998,542,479,013,721 would take you about one hundred ninety million, six hundred forty-two thousand, four hundred 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 1998542479013721 cubic inches would be around 10496.8 feet tall.

Recreational maths with 1998542479013721

• 1998542479013721 backwards is 1273109742458991
• The number of decimal digits it has is: 16
• The sum of 1998542479013721's digits is 72
• More coming soon!