398868818

Names of 398868818

• Cardinal: 398868818 can be written as Three hundred ninety-eight million, eight hundred sixty-eight thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 3.98868818 × 10⁸

Factors of 398868818

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 199434411

Divisors of 398868818

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 199434409 398868818
• Sum of all divisors σ(n): 598303230
• Sum of proper divisors (its aliquot sum) s(n): 199434412
• 398868818 is a deficient number, because the sum of its proper divisors (199434412) is less than itself. Its deficiency is 199434406

Bases of 398868818

• Binary: 10111110001100100000101010010₂
• Hexadecimal: 0x17C64152
• Base-36: 6LH55E

Squares and roots of 398868818

• 398868818 squared (398868818²) is 159096333972717124
• 398868818 cubed (398868818³) is 63458566679830923498239432
• The square root of 398868818 is 19971.7004283561
• The cube root of 398868818 is 736.1110922907

Scales and comparisons

• 398,868,818 seconds is equal to 12 years, 35 weeks, 3 days, 12 hours, 53 minutes, 38 seconds.
• To count from 1 to 398,868,818 would take you about nineteen 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 398868818 cubic inches would be around 61.3 feet tall.

Recreational maths with 398868818

• 398868818 backwards is 818868893
• The number of decimal digits it has is: 9
• The sum of 398868818's digits is 59
• More coming soon!