405775020

Names of 405775020

• Cardinal: 405775020 can be written as Four hundred five million, seven hundred seventy-five thousand and twenty.

Scientific notation

• Scientific notation: 4.0577502 × 10⁸

Factors of 405775020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 50885

Divisors of 405775020

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 210 228 266 285 380 399 420 532 570 665 798 1140 1330 1596 1995 2660 3990 7980 50849 101698 152547 203396 254245 305094 355943 508490 610188 711886 762735 966131 1016980 1067829 1423772 1525470 1779715 1932262 2135658 2898393 3050940 3559430 3864524 4271316 4830655 5339145 5796786 6762917 7118860 9661310 10678290 11593572 13525834 14491965 19322620 20288751 21356580 27051668 28983930 33814585 40577502 57967860 67629170 81155004 101443755 135258340 202887510 405775020
• Sum of all divisors σ(n): 1366848000
• Sum of proper divisors (its aliquot sum) s(n): 961072980
• 405775020 is an abundant number, because the sum of its proper divisors (961072980) is greater than itself. Its abundance is 555297960

Bases of 405775020

• Binary: 11000001011111010001010101100₂
• Hexadecimal: 0x182FA2AC
• Base-36: 6PL60C

Squares and roots of 405775020

• 405775020 squared (405775020²) is 164653366856000400
• 405775020 cubed (405775020³) is 66812223229060899430008000
• The square root of 405775020 is 20143.8581210253
• The cube root of 405775020 is 740.3352632281

Scales and comparisons

• 405,775,020 seconds is equal to 12 years, 46 weeks, 6 days, 11 hours, 17 minutes.
• To count from 1 to 405,775,020 would take you about nineteen 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 405775020 cubic inches would be around 61.7 feet tall.

Recreational maths with 405775020

• 405775020 backwards is 020577504
• 405775020 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 405775020's digits is 30
• More coming soon!