1321612855

Names of 1321612855

• Cardinal: 1321612855 can be written as One billion, three hundred twenty-one million, six hundred twelve thousand, eight hundred fifty-five.

Scientific notation

• Scientific notation: 1.321612855 × 10⁹

Factors of 1321612855

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 20706

Divisors of 1321612855

• Number of divisors d(n): 16
• Complete list of divisors:
  1 5 67 193 335 965 12931 20441 64655 102205 1369547 3945113 6847735 19725565 264322571 1321612855
• Sum of all divisors σ(n): 1618025184
• Sum of proper divisors (its aliquot sum) s(n): 296412329
• 1321612855 is a deficient number, because the sum of its proper divisors (296412329) is less than itself. Its deficiency is 1025200526

Bases of 1321612855

• Binary: 1001110110001100011011000110111₂
• Hexadecimal: 0x4EC63637
• Base-36: LUUR07

Squares and roots of 1321612855

• 1321612855 squared (1321612855²) is 1746660538501251025
• 1321612855 cubed (1321612855³) is 2308409021004475788221926375
• The square root of 1321612855 is 36353.9936595693
• The cube root of 1321612855 is 1097.4079063035

Scales and comparisons

• 1,321,612,855 seconds is equal to 42 years, 1 week, 1 day, 10 hours, 40 minutes, 55 seconds.
• To count from 1 to 1,321,612,855 would take you about eighty-four 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 1321612855 cubic inches would be around 91.5 feet tall.

Recreational maths with 1321612855

• 1321612855 backwards is 5582161231
• The number of decimal digits it has is: 10
• The sum of 1321612855's digits is 34
• More coming soon!