2149134721

Names of 2149134721

• Cardinal: 2149134721 can be written as Two billion, one hundred forty-nine million, one hundred thirty-four thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 2.149134721 × 10⁹

Factors of 2149134721

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1474478

Divisors of 2149134721

• Number of divisors d(n): 4
• Complete list of divisors:
  1 1459 1473019 2149134721
• Sum of all divisors σ(n): 2150609200
• Sum of proper divisors (its aliquot sum) s(n): 1474479
• 2149134721 is a deficient number, because the sum of its proper divisors (1474479) is less than itself. Its deficiency is 2147660242

Bases of 2149134721

• Binary: 10000000000110010011000110000001₂
• Hexadecimal: 0x80193181
• Base-36: ZJJEYP

Squares and roots of 2149134721

• 2149134721 squared (2149134721²) is 4618780049007747841
• 2149134721 cubed (2149134721³) is 9926380571984632483105887361
• The square root of 2149134721 is 46358.7609950913
• The cube root of 2149134721 is 1290.4897127145

Scales and comparisons

• 2,149,134,721 seconds is equal to 68 years, 17 weeks, 3 days, 5 hours, 52 minutes, 1 second.
• To count from 1 to 2,149,134,721 would take you about one 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 2149134721 cubic inches would be around 107.5 feet tall.

Recreational maths with 2149134721

• 2149134721 backwards is 1274319412
• The number of decimal digits it has is: 10
• The sum of 2149134721's digits is 34
• More coming soon!