85389631440

Names of 85389631440

• Cardinal: 85389631440 can be written as Eighty-five billion, three hundred eighty-nine million, six hundred thirty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 8.538963144 × 10¹⁰

Factors of 85389631440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 11477142

Divisors of 85389631440

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 310 372 465 496 620 744 930 1240 1488 1860 2480 3720 7440 11477101 22954202 34431303 45908404 57385505 68862606 91816808 114771010 137725212 172156515 183633616 229542020 275450424 344313030 355790131 459084040 550900848 688626060 711580262 918168080 1067370393 1377252120 1423160524 1778950655 2134740786 2754504240 2846321048 3557901310 4269481572 5336851965 5692642096 7115802620 8538963144 10673703930 14231605240 17077926288 21347407860 28463210480 42694815720 85389631440
• Sum of all divisors σ(n): 273246844416
• Sum of proper divisors (its aliquot sum) s(n): 187857212976
• 85389631440 is an abundant number, because the sum of its proper divisors (187857212976) is greater than itself. Its abundance is 102467581536

Bases of 85389631440

• Binary: 1001111100001100111100101111111010000₂
• Hexadecimal: 0x13E19E5FD0
• Base-36: 1386S5AO

Squares and roots of 85389631440

• 85389631440 squared (85389631440²) is 7291389157459036473600
• 85389631440 cubed (85389631440³) is 622609032841039251378221289984000
• The square root of 85389631440 is 292215.0431445993
• The cube root of 85389631440 is 4403.5376411671

Scales and comparisons

• 85,389,631,440 seconds is equal to 2,715 years, 6 weeks, 3 days, 22 hours, 4 minutes.
• To count from 1 to 85,389,631,440 would take you about five thousand, four hundred thirty 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 85389631440 cubic inches would be around 367 feet tall.

Recreational maths with 85389631440

• 85389631440 backwards is 04413698358
• The number of decimal digits it has is: 11
• The sum of 85389631440's digits is 51
• More coming soon!