31388325672

Names of 31388325672

• Cardinal: 31388325672 can be written as Thirty-one billion, three hundred eighty-eight million, three hundred twenty-five thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 3.1388325672 × 10¹⁰

Factors of 31388325672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1628790

Divisors of 31388325672

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 11 12 22 24 33 44 66 73 88 132 146 219 264 292 438 584 803 876 1606 1752 2409 3212 4818 6424 9636 19272 1628701 3257402 4886103 6514804 9772206 13029608 17915711 19544412 35831422 39088824 53747133 71662844 107494266 118895173 143325688 214988532 237790346 356685519 429977064 475580692 713371038 951161384 1307846903 1426742076 2615693806 2853484152 3923540709 5231387612 7847081418 10462775224 15694162836 31388325672
• Sum of all divisors σ(n): 86777242560
• Sum of proper divisors (its aliquot sum) s(n): 55388916888
• 31388325672 is an abundant number, because the sum of its proper divisors (55388916888) is greater than itself. Its abundance is 24000591216

Bases of 31388325672

• Binary: 11101001110111000111101011100101000₂
• Hexadecimal: 0x74EE3D728
• Base-36: EF3SR3C

Squares and roots of 31388325672

• 31388325672 squared (31388325672²) is 985226988491534251584
• 31388325672 cubed (31388325672³) is 30924625575616073103661373864448
• The square root of 31388325672 is 177167.5073821383
• The cube root of 31388325672 is 3154.4432357145

Scales and comparisons

• 31,388,325,672 seconds is equal to 998 years, 2 weeks, 4 days, 19 hours, 21 minutes, 12 seconds.
• To count from 1 to 31,388,325,672 would take you about one thousand, nine hundred ninety-six 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 31388325672 cubic inches would be around 262.9 feet tall.

Recreational maths with 31388325672

• 31388325672 backwards is 27652388313
• The number of decimal digits it has is: 11
• The sum of 31388325672's digits is 48
• More coming soon!