398921086404

Names of 398921086404

• Cardinal: 398921086404 can be written as Three hundred ninety-eight billion, nine hundred twenty-one million, eighty-six thousand, four hundred four.

Scientific notation

• Scientific notation: 3.98921086404 × 10¹¹

Factors of 398921086404

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 35094

Divisors of 398921086404

• Number of divisors d(n): 45
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 35089 70178 105267 140356 210534 315801 421068 631602 947403 1263204 1894806 2842209 3789612 5684418 11368836 1231237921 2462475842 3693713763 4924951684 7387427526 11081141289 14774855052 22162282578 33243423867 44324565156 66486847734 99730271601 132973695468 199460543202 398921086404
• Sum of all divisors σ(n): 1042888240317
• Sum of proper divisors (its aliquot sum) s(n): 643967153913
• 398921086404 is an abundant number, because the sum of its proper divisors (643967153913) is greater than itself. Its abundance is 245046067509

Bases of 398921086404

• Binary: 101110011100001100011001011010111000100₂
• Hexadecimal: 0x5CE18CB5C4
• Base-36: 539FBC90

Squares and roots of 398921086404

• 398921086404 squared (398921086404²) is 159138033177747633651216
• 398921086404 cubed (398921086404³) is 63483517083462882453883275935667264
• 398921086404 is a perfect square number. Its square root is 631602
• The cube root of 398921086404 is 7361.4324460895

Scales and comparisons

• 398,921,086,404 seconds is equal to 12,684 years, 23 weeks, 5 days, 4 hours, 53 minutes, 24 seconds.
• To count from 1 to 398,921,086,404 would take you about twenty-five thousand, three hundred sixty-eight 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 398921086404 cubic inches would be around 613.5 feet tall.

Recreational maths with 398921086404

• 398921086404 backwards is 404680129893
• 398921086404 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 398921086404's digits is 54
• More coming soon!