71730990

Names of 71730990

• Cardinal: 71730990 can be written as Seventy-one million, seven hundred thirty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 7.173099 × 10⁷

Factors of 71730990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 471

Divisors of 71730990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 173 255 271 306 346 510 519 542 765 813 865 1038 1355 1530 1557 1626 1730 2439 2595 2710 2941 3114 4065 4607 4878 5190 5882 7785 8130 8823 9214 12195 13821 14705 15570 17646 23035 24390 26469 27642 29410 41463 44115 46070 46883 52938 69105 82926 88230 93766 132345 138210 140649 207315 234415 264690 281298 414630 421947 468830 703245 797011 843894 1406490 1594022 2109735 2391033 3985055 4219470 4782066 7173099 7970110 11955165 14346198 23910330 35865495 71730990
• Sum of all divisors σ(n): 199345536
• Sum of proper divisors (its aliquot sum) s(n): 127614546
• 71730990 is an abundant number, because the sum of its proper divisors (127614546) is greater than itself. Its abundance is 55883556

Bases of 71730990

• Binary: 100010001101000011100101110₂
• Hexadecimal: 0x446872E
• Base-36: 16PFZI

Squares and roots of 71730990

• 71730990 squared (71730990²) is 5145334926380100
• 71730990 cubed (71730990³) is 369079968150821689299000
• The square root of 71730990 is 8469.4149738929
• The cube root of 71730990 is 415.4980037873

Scales and comparisons

• 71,730,990 seconds is equal to 2 years, 14 weeks, 4 days, 5 hours, 16 minutes, 30 seconds.
• To count from 1 to 71,730,990 would take you about three 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 71730990 cubic inches would be around 34.6 feet tall.

Recreational maths with 71730990

• 71730990 backwards is 09903717
• The number of decimal digits it has is: 8
• The sum of 71730990's digits is 36
• More coming soon!