31728994660

Names of 31728994660

• Cardinal: 31728994660 can be written as Thirty-one billion, seven hundred twenty-eight million, nine hundred ninety-four thousand, six hundred sixty.

Scientific notation

• Scientific notation: 3.172899466 × 10¹⁰

Factors of 31728994660

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 863794

Divisors of 31728994660

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 11 20 22 44 55 110 167 220 334 668 835 1670 1837 3340 3674 7348 9185 18370 36740 863609 1727218 3454436 4318045 8636090 9499699 17272180 18999398 37998796 47498495 94996990 144222703 189993980 288445406 576890812 721113515 1442227030 1586449733 2884454060 3172899466 6345798932 7932248665 15864497330 31728994660
• Sum of all divisors σ(n): 73123585920
• Sum of proper divisors (its aliquot sum) s(n): 41394591260
• 31728994660 is an abundant number, because the sum of its proper divisors (41394591260) is greater than itself. Its abundance is 9665596600

Bases of 31728994660

• Binary: 11101100011001100100000100101100100₂
• Hexadecimal: 0x763320964
• Base-36: EKQMGYS

Squares and roots of 31728994660

• 31728994660 squared (31728994660²) is 1006729102134308515600
• 31728994660 cubed (31728994660³) is 31942502305686069494264926696000
• The square root of 31728994660 is 178126.3446545737
• The cube root of 31728994660 is 3165.8143053051

Scales and comparisons

• 31,728,994,660 seconds is equal to 1,008 years, 45 weeks, 6 days, 17 hours, 37 minutes, 40 seconds.
• To count from 1 to 31,728,994,660 would take you about two thousand and seventeen 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 31728994660 cubic inches would be around 263.8 feet tall.

Recreational maths with 31728994660

• 31728994660 backwards is 06649982713
• 31728994660 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31728994660's digits is 55
• More coming soon!