18039646449

Names of 18039646449

• Cardinal: 18039646449 can be written as Eighteen billion, thirty-nine million, six hundred forty-six thousand, four hundred forty-nine.

Scientific notation

• Scientific notation: 1.8039646449 × 10¹⁰

Factors of 18039646449

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 836

Divisors of 18039646449

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 11 31 33 61 93 99 173 183 279 341 519 549 557 671 1023 1557 1671 1891 1903 2013 3069 5013 5363 5673 5709 6039 6127 10553 16089 17019 17127 17267 18381 20801 31659 33977 48267 51801 55143 58993 62403 94977 96361 101931 116083 155403 176979 187209 189937 289083 305793 327143 348249 373747 530937 569811 867249 981429 1044747 1053287 1059971 1121241 1709433 2944287 2987191 3159861 3179913 3363723 3598573 5878021 8961573 9479583 9539739 10795719 11586157 17634063 26884719 32387157 32859101 34758471 52902189 64658231 98577303 104275413 182218651 193974693 295731909 546655953 581924079 1639967859 2004405161 6013215483 18039646449
• Sum of all divisors σ(n): 30050362368
• Sum of proper divisors (its aliquot sum) s(n): 12010715919
• 18039646449 is a deficient number, because the sum of its proper divisors (12010715919) is less than itself. Its deficiency is 6028930530

Bases of 18039646449

• Binary: 10000110011001111110010100011110001₂
• Hexadecimal: 0x4333F28F1
• Base-36: 8ACC8A9

Squares and roots of 18039646449

• 18039646449 squared (18039646449²) is 325428844004918309601
• 18039646449 cubed (18039646449³) is 5870621290155499522328762256849
• The square root of 18039646449 is 134311.7509713875
• The cube root of 18039646449 is 2622.6641145471

Scales and comparisons

• 18,039,646,449 seconds is equal to 573 years, 31 weeks, 3 days, 4 hours, 54 minutes, 9 seconds.
• To count from 1 to 18,039,646,449 would take you about one thousand, one hundred forty-seven 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 18039646449 cubic inches would be around 218.6 feet tall.

Recreational maths with 18039646449

• 18039646449 backwards is 94464693081
• The number of decimal digits it has is: 11
• The sum of 18039646449's digits is 54
• More coming soon!