20421431844

Names of 20421431844

• Cardinal: 20421431844 can be written as Twenty billion, four hundred twenty-one million, four hundred thirty-one thousand, eight hundred forty-four.

Scientific notation

• Scientific notation: 2.0421431844 × 10¹⁰

Factors of 20421431844

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3474

Divisors of 20421431844

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 421 484 726 842 1263 1331 1452 1684 2526 2662 3037 3993 4631 5052 5324 6074 7986 9111 9262 12148 13893 15972 18222 18524 27786 33407 36444 50941 55572 66814 100221 101882 133628 152823 200442 203764 305646 367477 400884 560351 611292 734954 1102431 1120702 1278577 1469908 1681053 2204862 2241404 2557154 3362106 3835731 4042247 4409724 5114308 6724212 7671462 8084494 12126741 14064347 15342924 16168988 24253482 28128694 42193041 48506964 56257388 84386082 154707817 168772164 309415634 464123451 618831268 928246902 1701785987 1856493804 3403571974 5105357961 6807143948 10210715922 20421431844
• Sum of all divisors σ(n): 52553219712
• Sum of proper divisors (its aliquot sum) s(n): 32131787868
• 20421431844 is an abundant number, because the sum of its proper divisors (32131787868) is greater than itself. Its abundance is 11710356024

Bases of 20421431844

• Binary: 10011000001001101100101001000100100₂
• Hexadecimal: 0x4C1365224
• Base-36: 9DQE5NO

Squares and roots of 20421431844

• 20421431844 squared (20421431844²) is 417034878559137240336
• 20421431844 cubed (20421431844³) is 8516449349066238076963871659584
• The square root of 20421431844 is 142903.5753366583
• The cube root of 20421431844 is 2733.3509480457

Scales and comparisons

• 20,421,431,844 seconds is equal to 649 years, 17 weeks, 4 days, 3 hours, 57 minutes, 24 seconds.
• To count from 1 to 20,421,431,844 would take you about one thousand, two hundred ninety-eight 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 20421431844 cubic inches would be around 227.8 feet tall.

Recreational maths with 20421431844

• 20421431844 backwards is 44813412402
• 20421431844 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20421431844's digits is 33
• More coming soon!