1321608981

Names of 1321608981

• Cardinal: 1321608981 can be written as One billion, three hundred twenty-one million, six hundred eight thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 1.321608981 × 10⁹

Factors of 1321608981

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1474

Divisors of 1321608981

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 11 21 33 61 71 77 183 213 231 427 497 671 781 1281 1321 1491 2013 2343 3963 4331 4697 5467 9247 12993 14091 14531 16401 27741 30317 43593 47641 80581 90951 93791 101717 142923 241743 281373 305151 333487 564067 656537 886391 1000461 1031701 1692201 1969611 2659173 3095103 5721251 6204737 7221907 17163753 18614211 21665721 40048757 62933761 120146271 188801283 440536327 1321608981
• Sum of all divisors σ(n): 2266140672
• Sum of proper divisors (its aliquot sum) s(n): 944531691
• 1321608981 is a deficient number, because the sum of its proper divisors (944531691) is less than itself. Its deficiency is 377077290

Bases of 1321608981

• Binary: 1001110110001100010011100010101₂
• Hexadecimal: 0x4EC62715
• Base-36: LUUO0L

Squares and roots of 1321608981

• 1321608981 squared (1321608981²) is 1746650298659858361
• 1321608981 cubed (1321608981³) is 2308388721375201074085540141
• The square root of 1321608981 is 36353.9403779013
• The cube root of 1321608981 is 1097.4068340373

Scales and comparisons

• 1,321,608,981 seconds is equal to 42 years, 1 week, 1 day, 9 hours, 36 minutes, 21 seconds.
• To count from 1 to 1,321,608,981 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 1321608981 cubic inches would be around 91.5 feet tall.

Recreational maths with 1321608981

• 1321608981 backwards is 1898061231
• The number of decimal digits it has is: 10
• The sum of 1321608981's digits is 39
• More coming soon!