1390219831

Names of 1390219831

• Cardinal: 1390219831 can be written as One billion, three hundred ninety million, two hundred nineteen thousand, eight hundred thirty-one.

Scientific notation

• Scientific notation: 1.390219831 × 10⁹

Factors of 1390219831

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 764

Divisors of 1390219831

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 11 13 31 71 77 91 143 217 341 403 497 631 781 923 1001 2201 2387 2821 4417 4433 5467 6461 6941 8203 10153 15407 19561 24211 28613 31031 44801 48587 57421 71071 90233 136927 169477 200291 215171 254293 313607 314743 492811 582413 631631 1388831 1506197 1780051 2203201 2797223 3449677 4076891 6406543 9721817 15277141 18054803 19580561 44845801 106939987 126383621 198602833 1390219831
• Sum of all divisors σ(n): 1957036032
• Sum of proper divisors (its aliquot sum) s(n): 566816201
• 1390219831 is a deficient number, because the sum of its proper divisors (566816201) is less than itself. Its deficiency is 823403630

Bases of 1390219831

• Binary: 1010010110111010001001000110111₂
• Hexadecimal: 0x52DD1237
• Base-36: MZP8HJ

Squares and roots of 1390219831

• 1390219831 squared (1390219831²) is 1932711178505668561
• 1390219831 cubed (1390219831³) is 2686893407953961379415433191
• The square root of 1390219831 is 37285.6518113871
• The cube root of 1390219831 is 1116.0778602919

Scales and comparisons

• 1,390,219,831 seconds is equal to 44 years, 10 weeks, 4 days, 12 hours, 10 minutes, 31 seconds.
• To count from 1 to 1,390,219,831 would take you about eighty-eight 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 1390219831 cubic inches would be around 93 feet tall.

Recreational maths with 1390219831

• 1390219831 backwards is 1389120931
• The number of decimal digits it has is: 10
• The sum of 1390219831's digits is 37
• More coming soon!