21821962816

Names of 21821962816

• Cardinal: 21821962816 can be written as Twenty-one billion, eight hundred twenty-one million, nine hundred sixty-two thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1821962816 × 10¹⁰

Factors of 21821962816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 17209

Divisors of 21821962816

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 23 32 46 64 92 184 368 736 911 1472 1822 3644 7288 14576 16273 20953 29152 32546 41906 58304 65092 83812 130184 167624 260368 335248 374279 520736 670496 748558 1041472 1340992 1497116 2994232 5988464 11976928 14824703 23953856 29649406 59298812 118597624 237195248 340968169 474390496 681936338 948780992 1363872676 2727745352 5455490704 10910981408 21821962816
• Sum of all divisors σ(n): 45238074624
• Sum of proper divisors (its aliquot sum) s(n): 23416111808
• 21821962816 is an abundant number, because the sum of its proper divisors (23416111808) is greater than itself. Its abundance is 1594148992

Bases of 21821962816

• Binary: 10100010100101100001011101001000000₂
• Hexadecimal: 0x514B0BA40
• Base-36: A0W8E9S

Squares and roots of 21821962816

• 21821962816 squared (21821962816²) is 476198061142886649856
• 21821962816 cubed (21821962816³) is 10391576383311366936060443754496
• The square root of 21821962816 is 147722.5873588735
• The cube root of 21821962816 is 2794.4602551153

Scales and comparisons

• 21,821,962,816 seconds is equal to 693 years, 45 weeks, 2 days, 20 minutes, 16 seconds.
• To count from 1 to 21,821,962,816 would take you about one thousand, three hundred eighty-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 21821962816 cubic inches would be around 232.9 feet tall.

Recreational maths with 21821962816

• 21821962816 backwards is 61826912812
• 21821962816 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21821962816's digits is 46
• More coming soon!