27998152478721

Names of 27998152478721

• Cardinal: 27998152478721 can be written as Twenty-seven trillion, nine hundred ninety-eight billion, one hundred fifty-two million, four hundred seventy-eight thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 2.7998152478721 × 10¹³

Factors of 27998152478721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 194403

Divisors of 27998152478721

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 9 27 29 31 81 87 93 261 279 783 837 899 1999 2349 2511 2697 5997 8091 17991 24273 53973 57971 61969 72819 161919 173913 185907 192341 521739 557721 577023 1565217 1673163 1731069 1797101 4695651 5019489 5193207 5391303 5577889 5962571 15579621 16173909 16733667 17887713 48521727 50201001 53663139 145565181 150603003 160989417 172914559 384489659 451809009 482968251 518743677 1153468977 1556231031 3460406931 4668693093 10381220793 11150200111 11919179429 14006079279 31143662379 33450600333 35757538287 100351800999 107272614861 301055402997 321817844583 345656203441 903166208991 965453533749 1036968610323 3110905830969 9332717492907 27998152478721
• Sum of all divisors σ(n): 44684893440000
• Sum of proper divisors (its aliquot sum) s(n): 16686740961279
• 27998152478721 is a deficient number, because the sum of its proper divisors (16686740961279) is less than itself. Its deficiency is 11311411517442

Bases of 27998152478721

• Binary: 110010111011011010011111011101101000000000001₂
• Hexadecimal: 0x1976D3EED001
• Base-36: 9XA693F29

Squares and roots of 27998152478721

• 27998152478721 squared (27998152478721²) is 783896542221710876357795841
• 27998152478721 cubed (27998152478721³) is 21947654916665615405238426782166214799361
• The square root of 27998152478721 is 5291328.0448977079
• The cube root of 27998152478721 is 30365.2218275499

Scales and comparisons

• 27,998,152,478,721 seconds is equal to 890,254 years, 33 weeks, 3 days, 17 hours, 25 minutes, 21 seconds.
• To count from 1 to 27,998,152,478,721 would take you about two million, two hundred twenty-five thousand, six hundred thirty-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 27998152478721 cubic inches would be around 2530.4 feet tall.

Recreational maths with 27998152478721

• 27998152478721 backwards is 12787425189972
• The number of decimal digits it has is: 14
• The sum of 27998152478721's digits is 72
• More coming soon!