745020990

Names of 745020990

• Cardinal: 745020990 can be written as Seven hundred forty-five million, twenty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 7.4502099 × 10⁸

Factors of 745020990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6274

Divisors of 745020990

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 49 54 63 70 81 90 98 105 126 135 147 162 189 210 243 245 270 294 315 378 405 441 486 490 567 630 735 810 882 945 1134 1215 1323 1470 1701 1890 2205 2430 2646 2835 3402 3969 4410 5670 6257 6615 7938 8505 11907 12514 13230 17010 18771 19845 23814 31285 37542 39690 43799 56313 59535 62570 87598 93855 112626 119070 131397 168939 187710 218995 262794 281565 306593 337878 394191 437990 506817 563130 613186 656985 788382 844695 919779 1013634 1182573 1313970 1520451 1532965 1689390 1839558 1970955 2365146 2534085 2759337 3040902 3065930 3547719 3941910 4598895 5068170 5518674 5912865 7095438 7602255 8278011 9197790 10643157 11825730 13796685 15204510 16556022 17738595 21286314 24834033 27593370 35477190 41390055 49668066 53215785 74502099 82780110 106431570 124170165 149004198 248340330 372510495 745020990
• Sum of all divisors σ(n): 2337137712
• Sum of proper divisors (its aliquot sum) s(n): 1592116722
• 745020990 is an abundant number, because the sum of its proper divisors (1592116722) is greater than itself. Its abundance is 847095732

Bases of 745020990

• Binary: 101100011010000001111000111110₂
• Hexadecimal: 0x2C681E3E
• Base-36: CBKDVI

Squares and roots of 745020990

• 745020990 squared (745020990²) is 555056275540580100
• 745020990 cubed (745020990³) is 413528575908955771276299000
• The square root of 745020990 is 27295.0726322533
• The cube root of 745020990 is 906.5452837851

Scales and comparisons

• 745,020,990 seconds is equal to 23 years, 35 weeks, 5 days, 22 hours, 16 minutes, 30 seconds.
• To count from 1 to 745,020,990 would take you about thirty-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 745020990 cubic inches would be around 75.5 feet tall.

Recreational maths with 745020990

• 745020990 backwards is 099020547
• The number of decimal digits it has is: 9
• The sum of 745020990's digits is 36
• More coming soon!