38221981

Names of 38221981

• Cardinal: 38221981 can be written as Thirty-eight million, two hundred twenty-one thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 3.8221981 × 10⁷

Factors of 38221981

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 5603

Divisors of 38221981

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 1259 4337 8813 30359 5460283 38221981
• Sum of all divisors σ(n): 43727040
• Sum of proper divisors (its aliquot sum) s(n): 5505059
• 38221981 is a deficient number, because the sum of its proper divisors (5505059) is less than itself. Its deficiency is 32716922

Bases of 38221981

• Binary: 10010001110011100010011101₂
• Hexadecimal: 0x247389D
• Base-36: MR89P

Squares and roots of 38221981

• 38221981 squared (38221981²) is 1460919831564361
• 38221981 cubed (38221981³) is 55839250044576206419141
• The square root of 38221981 is 6182.3928215539
• The cube root of 38221981 is 336.8509145169

Scales and comparisons

• 38,221,981 seconds is equal to 1 year, 11 weeks, 1 day, 9 hours, 13 minutes, 1 second.
• To count from 1 to 38,221,981 would take you about forty-two weeks!

  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 38221981 cubic inches would be around 28.1 feet tall.

Recreational maths with 38221981

• 38221981 backwards is 18912283
• The number of decimal digits it has is: 8
• The sum of 38221981's digits is 34
• More coming soon!