18161481448

Names of 18161481448

• Cardinal: 18161481448 can be written as Eighteen billion, one hundred sixty-one million, four hundred eighty-one thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 1.8161481448 × 10¹⁰

Factors of 18161481448

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 545

Divisors of 18161481448

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 11 22 44 88 101 121 202 242 404 431 484 808 862 968 1111 1724 2222 3448 4444 4741 8888 9482 12221 18964 24442 37928 43531 48884 52151 87062 97768 104302 174124 185761 208604 348248 371522 417208 478841 743044 957682 1486088 1915364 2043371 3830728 4086742 5267251 8173484 10534502 16346968 18761861 21069004 22477081 37523722 42138008 44954162 75047444 89908324 150094888 179816648 206380471 412760942 825521884 1651043768 2270185181 4540370362 9080740724 18161481448
• Sum of all divisors σ(n): 37888413570
• Sum of proper divisors (its aliquot sum) s(n): 19726932122
• 18161481448 is an abundant number, because the sum of its proper divisors (19726932122) is greater than itself. Its abundance is 1565450674

Bases of 18161481448

• Binary: 10000111010100000100011011011101000₂
• Hexadecimal: 0x43A8236E8
• Base-36: 8CCVKRS

Squares and roots of 18161481448

• 18161481448 squared (18161481448²) is 329839408386048176704
• 18161481448 cubed (18161481448³) is 5990372296222509583243921787392
• The square root of 18161481448 is 134764.5407664789
• The cube root of 18161481448 is 2628.5551320925

Scales and comparisons

• 18,161,481,448 seconds is equal to 577 years, 24 weeks, 6 days, 7 hours, 57 minutes, 28 seconds.
• To count from 1 to 18,161,481,448 would take you about one thousand, one hundred fifty-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 18161481448 cubic inches would be around 219 feet tall.

Recreational maths with 18161481448

• 18161481448 backwards is 84418416181
• The number of decimal digits it has is: 11
• The sum of 18161481448's digits is 46
• More coming soon!