405395538020

Names of 405395538020

• Cardinal: 405395538020 can be written as Four hundred five billion, three hundred ninety-five million, five hundred thirty-eight thousand and twenty.

Scientific notation

• Scientific notation: 4.0539553802 × 10¹¹

Factors of 405395538020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 59442210

Divisors of 405395538020

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3410 6820 59442161 118884322 237768644 297210805 594421610 653863771 1188843220 1307727542 1842706991 2615455084 3269318855 3685413982 6538637710 7370827964 9213534955 13077275420 18427069910 20269776901 36854139820 40539553802 81079107604 101348884505 202697769010 405395538020
• Sum of all divisors σ(n): 958683188736
• Sum of proper divisors (its aliquot sum) s(n): 553287650716
• 405395538020 is an abundant number, because the sum of its proper divisors (553287650716) is greater than itself. Its abundance is 147892112696

Bases of 405395538020

• Binary: 101111001100011011101010000000001100100₂
• Hexadecimal: 0x5E63750064
• Base-36: 568I1B38

Squares and roots of 405395538020

• 405395538020 squared (405395538020²) is 164345542246525265520400
• 405395538020 cubed (405395538020³) is 66624949520218749491165913285608000
• The square root of 405395538020 is 636706.7912469601
• The cube root of 405395538020 is 7401.0440334839

Scales and comparisons

• 405,395,538,020 seconds is equal to 12,890 years, 16 weeks, 5 days, 23 hours, 40 minutes, 20 seconds.
• To count from 1 to 405,395,538,020 would take you about twenty-five thousand, seven hundred eighty 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 405395538020 cubic inches would be around 616.8 feet tall.

Recreational maths with 405395538020

• 405395538020 backwards is 020835593504
• 405395538020 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 405395538020's digits is 44
• More coming soon!