400028695808

Names of 400028695808

• Cardinal: 400028695808 can be written as Four hundred billion, twenty-eight million, six hundred ninety-five thousand, eight hundred eight.

Scientific notation

• Scientific notation: 4.00028695808 × 10¹¹

Factors of 400028695808

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 223230308

Divisors of 400028695808

• Number of divisors d(n): 36
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 896 1792 223230299 446460598 892921196 1562612093 1785842392 3125224186 3571684784 6250448372 7143369568 12500896744 14286739136 25001793488 28573478272 50003586976 57146956544 100007173952 200014347904 400028695808
• Sum of all divisors σ(n): 912565466400
• Sum of proper divisors (its aliquot sum) s(n): 512536770592
• 400028695808 is an abundant number, because the sum of its proper divisors (512536770592) is greater than itself. Its abundance is 112508074784

Bases of 400028695808

• Binary: 101110100100011100100010111110100000000₂
• Hexadecimal: 0x5D23917D00
• Base-36: 53RQR94W

Squares and roots of 400028695808

• 400028695808 squared (400028695808²) is 160022957469849396772864
• 400028695808 cubed (400028695808³) is 64013774976002905673224309924954112
• The square root of 400028695808 is 632478.2176549639
• The cube root of 400028695808 is 7368.2391868351

Scales and comparisons

• 400,028,695,808 seconds is equal to 12,719 years, 35 weeks, 18 hours, 10 minutes, 8 seconds.
• To count from 1 to 400,028,695,808 would take you about twenty-five thousand, four hundred thirty-nine 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 400028695808 cubic inches would be around 614 feet tall.

Recreational maths with 400028695808

• 400028695808 backwards is 808596820004
• The number of decimal digits it has is: 12
• The sum of 400028695808's digits is 50
• More coming soon!