21474811449

Names of 21474811449

• Cardinal: 21474811449 can be written as Twenty-one billion, four hundred seventy-four million, eight hundred eleven thousand, four hundred forty-nine.

Scientific notation

• Scientific notation: 2.1474811449 × 10¹⁰

Factors of 21474811449

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 71123

Divisors of 21474811449

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 7 9 13 21 27 39 41 63 81 91 117 123 189 273 287 351 369 533 567 819 861 1053 1107 1599 2457 2583 3321 3731 4797 7371 7749 11193 14391 23247 33579 43173 71059 100737 213177 302211 497413 639531 923767 1492239 1918593 2771301 2913419 4476717 5755779 6466369 8313903 8740257 13430151 19399107 20393933 24941709 26220771 37874447 40290453 58197321 61181799 74825127 78662313 113623341 174591963 183545397 235986939 265121129 340870023 523775889 550636191 795363387 1022610069 1651908573 2386090161 3067830207 7158270483 21474811449
• Sum of all divisors σ(n): 40446215040
• Sum of proper divisors (its aliquot sum) s(n): 18971403591
• 21474811449 is a deficient number, because the sum of its proper divisors (18971403591) is less than itself. Its deficiency is 2503407858

Bases of 21474811449

• Binary: 10011111111111111111001111000111001₂
• Hexadecimal: 0x4FFFF9E39
• Base-36: 9V5JQK9

Squares and roots of 21474811449

• 21474811449 squared (21474811449²) is 461167526770101479601
• 21474811449 cubed (21474811449³) is 9903485683789589245027394751849
• The square root of 21474811449 is 146542.8655684063
• The cube root of 21474811449 is 2779.5625594427

Scales and comparisons

• 21,474,811,449 seconds is equal to 682 years, 43 weeks, 2 days, 1 hour, 24 minutes, 9 seconds.
• To count from 1 to 21,474,811,449 would take you about one thousand, three hundred sixty-five 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 21474811449 cubic inches would be around 231.6 feet tall.

Recreational maths with 21474811449

• 21474811449 backwards is 94411847412
• The number of decimal digits it has is: 11
• The sum of 21474811449's digits is 45
• More coming soon!