31228920855

Names of 31228920855

• Cardinal: 31228920855 can be written as Thirty-one billion, two hundred twenty-eight million, nine hundred twenty thousand, eight hundred fifty-five.

Scientific notation

• Scientific notation: 3.1228920855 × 10¹⁰

Factors of 31228920855

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 198

Divisors of 31228920855

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 9 11 15 33 45 55 99 121 165 179 363 495 537 605 895 1089 1611 1815 1969 2685 5445 5907 8055 9845 17721 21659 29535 32041 64977 88605 96123 108295 160205 194931 288369 324885 352451 480615 974655 1057353 1441845 1762255 3172059 3876961 5286765 5735339 11630883 15860295 17206017 19384805 28676695 34892649 51618051 58154415 63088729 86030085 174463245 189266187 258090255 315443645 567798561 693976019 946330935 2081928057 2838992805 3469880095 6245784171 10409640285 31228920855
• Sum of all divisors σ(n): 59832667440
• Sum of proper divisors (its aliquot sum) s(n): 28603746585
• 31228920855 is a deficient number, because the sum of its proper divisors (28603746585) is less than itself. Its deficiency is 2625174270

Bases of 31228920855

• Binary: 11101000101011000111000010000010111₂
• Hexadecimal: 0x745638417
• Base-36: ECGW5JR

Squares and roots of 31228920855

• 31228920855 squared (31228920855²) is 975245497767853931025
• 31228920855 cubed (31228920855³) is 30455864463987389575180354026375
• The square root of 31228920855 is 176717.0644137119
• The cube root of 31228920855 is 3149.0942505461

Scales and comparisons

• 31,228,920,855 seconds is equal to 992 years, 51 weeks, 20 hours, 14 minutes, 15 seconds.
• To count from 1 to 31,228,920,855 would take you about one thousand, nine hundred eighty-five 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 31228920855 cubic inches would be around 262.4 feet tall.

Recreational maths with 31228920855

• 31228920855 backwards is 55802982213
• 31228920855 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31228920855's digits is 45
• More coming soon!