13281916221

Names of 13281916221

• Cardinal: 13281916221 can be written as Thirteen billion, two hundred eighty-one million, nine hundred sixteen thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.3281916221 × 10¹⁰

Factors of 13281916221

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 194

Divisors of 13281916221

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 27 63 83 101 189 249 303 581 707 747 909 1743 2121 2241 2727 5229 6363 6889 8383 10201 15687 19089 20667 25149 30603 48223 58681 62001 71407 75447 91809 144669 176043 186003 214221 226341 275427 434007 528129 642663 695789 846683 1302021 1584387 1927989 2087367 2540049 4870523 5926781 6262101 7620147 14611569 17780343 18786303 22860441 43834707 53341029 70274689 131504121 160023087 210824067 491922823 632472201 1475768469 1897416603 4427305407 13281916221
• Sum of all divisors σ(n): 22989702080
• Sum of proper divisors (its aliquot sum) s(n): 9707785859
• 13281916221 is a deficient number, because the sum of its proper divisors (9707785859) is less than itself. Its deficiency is 3574130362

Bases of 13281916221

• Binary: 1100010111101010011111010100111101₂
• Hexadecimal: 0x317A9F53D
• Base-36: 63NPK59

Squares and roots of 13281916221

• 13281916221 squared (13281916221²) is 176409298501662920841
• 13281916221 cubed (13281916221³) is 2343053523304467743792316861861
• The square root of 13281916221 is 115247.1961524445
• The cube root of 13281916221 is 2368.2101901063

Scales and comparisons

• 13,281,916,221 seconds is equal to 422 years, 16 weeks, 5 days, 21 hours, 10 minutes, 21 seconds.
• To count from 1 to 13,281,916,221 would take you about eight hundred forty-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 13281916221 cubic inches would be around 197.4 feet tall.

Recreational maths with 13281916221

• 13281916221 backwards is 12261918231
• The number of decimal digits it has is: 11
• The sum of 13281916221's digits is 36
• More coming soon!