400630286720

Names of 400630286720

• Cardinal: 400630286720 can be written as Four hundred billion, six hundred thirty million, two hundred eighty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 4.0063028672 × 10¹¹

Factors of 400630286720

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 625984830

Divisors of 400630286720

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 625984823 1251969646 2503939292 3129924115 5007878584 6259848230 10015757168 12519696460 20031514336 25039392920 40063028672 50078785840 80126057344 100157571680 200315143360 400630286720
• Sum of all divisors σ(n): 957756780720
• Sum of proper divisors (its aliquot sum) s(n): 557126494000
• 400630286720 is an abundant number, because the sum of its proper divisors (557126494000) is greater than itself. Its abundance is 156496207280

Bases of 400630286720

• Binary: 101110101000111011011010000100110000000₂
• Hexadecimal: 0x5D476D0980
• Base-36: 541OXFNK

Squares and roots of 400630286720

• 400630286720 squared (400630286720²) is 160504626637349408358400
• 400630286720 cubed (400630286720³) is 64303014589607842931448156520448000
• The square root of 400630286720 is 632953.6213025407
• The cube root of 400630286720 is 7371.9309599365

Scales and comparisons

• 400,630,286,720 seconds is equal to 12,738 years, 41 weeks, 5 days, 14 hours, 45 minutes, 20 seconds.
• To count from 1 to 400,630,286,720 would take you about twenty-five thousand, four hundred seventy-seven 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 400630286720 cubic inches would be around 614.3 feet tall.

Recreational maths with 400630286720

• 400630286720 backwards is 027682036004
• The number of decimal digits it has is: 12
• The sum of 400630286720's digits is 38
• More coming soon!