31945385984

Names of 31945385984

• Cardinal: 31945385984 can be written as Thirty-one billion, nine hundred forty-five million, three hundred eighty-five thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 3.1945385984 × 10¹⁰

Factors of 31945385984

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 917568

Divisors of 31945385984

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 16 17 32 34 64 68 128 136 256 272 512 544 1024 1088 2048 2176 4352 8704 17408 34816 917549 1835098 3670196 7340392 14680784 15598333 29361568 31196666 58723136 62393332 117446272 124786664 234892544 249573328 469785088 499146656 939570176 998293312 1879140352 1996586624 3993173248 7986346496 15972692992 31945385984
• Sum of all divisors σ(n): 67632610500
• Sum of proper divisors (its aliquot sum) s(n): 35687224516
• 31945385984 is an abundant number, because the sum of its proper divisors (35687224516) is greater than itself. Its abundance is 3741838532

Bases of 31945385984

• Binary: 11101110000000101111110100000000000₂
• Hexadecimal: 0x77017E800
• Base-36: EOBGHKW

Squares and roots of 31945385984

• 31945385984 squared (31945385984²) is 1020507685666743648256
• 31945385984 cubed (31945385984³) is 32600511918262670235918248443904
• The square root of 31945385984 is 178732.7221971399
• The cube root of 31945385984 is 3172.9949432419

Scales and comparisons

• 31,945,385,984 seconds is equal to 1,015 years, 39 weeks, 5 days, 6 hours, 19 minutes, 44 seconds.
• To count from 1 to 31,945,385,984 would take you about two thousand and thirty-one 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 31945385984 cubic inches would be around 264.4 feet tall.

Recreational maths with 31945385984

• 31945385984 backwards is 48958354913
• The number of decimal digits it has is: 11
• The sum of 31945385984's digits is 59
• More coming soon!