1981160742

Names of 1981160742

• Cardinal: 1981160742 can be written as One billion, nine hundred eighty-one million, one hundred sixty thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 1.981160742 × 10⁹

Factors of 1981160742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1579908

Divisors of 1981160742

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 11 19 22 33 38 57 66 114 209 418 627 1254 1579873 3159746 4739619 9479238 17378603 30017587 34757206 52135809 60035174 90052761 104271618 180105522 330193457 660386914 990580371 1981160742
• Sum of all divisors σ(n): 4550037120
• Sum of proper divisors (its aliquot sum) s(n): 2568876378
• 1981160742 is an abundant number, because the sum of its proper divisors (2568876378) is greater than itself. Its abundance is 587715636

Bases of 1981160742

• Binary: 1110110000101100001110100100110₂
• Hexadecimal: 0x76161D26
• Base-36: WRJ5EU

Squares and roots of 1981160742

• 1981160742 squared (1981160742²) is 3924997885641990564
• 1981160742 cubed (1981160742³) is 7776051723466917172131238488
• The square root of 1981160742 is 44510.2318798723
• The cube root of 1981160742 is 1255.9525668559

Scales and comparisons

• 1,981,160,742 seconds is equal to 62 years, 51 weeks, 5 days, 2 hours, 25 minutes, 42 seconds.
• To count from 1 to 1,981,160,742 would take you about one hundred twenty-five 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 1981160742 cubic inches would be around 104.7 feet tall.

Recreational maths with 1981160742

• 1981160742 backwards is 2470611891
• The number of decimal digits it has is: 10
• The sum of 1981160742's digits is 39
• More coming soon!