125748990

Names of 125748990

• Cardinal: 125748990 can be written as One hundred twenty-five million, seven hundred forty-eight thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.2574899 × 10⁸

Factors of 125748990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5332

Divisors of 125748990

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 89 90 135 178 267 270 445 534 801 890 1335 1602 2403 2670 4005 4806 5233 8010 10466 12015 15699 24030 26165 31398 47097 52330 78495 94194 141291 156990 235485 282582 465737 470970 706455 931474 1397211 1412910 2328685 2794422 4191633 4657370 6986055 8383266 12574899 13972110 20958165 25149798 41916330 62874495 125748990
• Sum of all divisors σ(n): 339163200
• Sum of proper divisors (its aliquot sum) s(n): 213414210
• 125748990 is an abundant number, because the sum of its proper divisors (213414210) is greater than itself. Its abundance is 87665220

Bases of 125748990

• Binary: 111011111101100011011111110₂
• Hexadecimal: 0x77EC6FE
• Base-36: 22V8JI

Squares and roots of 125748990

• 125748990 squared (125748990²) is 15812808486020100
• 125748990 cubed (125748990³) is 1988444696180456694699000
• The square root of 125748990 is 11213.7857122383
• The cube root of 125748990 is 500.9966653297

Scales and comparisons

• 125,748,990 seconds is equal to 3 years, 51 weeks, 6 days, 10 hours, 16 minutes, 30 seconds.
• To count from 1 to 125,748,990 would take you about 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 125748990 cubic inches would be around 41.7 feet tall.

Recreational maths with 125748990

• 125748990 backwards is 099847521
• 125748990 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 125748990's digits is 45
• More coming soon!