21443352021

Names of 21443352021

• Cardinal: 21443352021 can be written as Twenty-one billion, four hundred forty-three million, three hundred fifty-two thousand and twenty-one.

Scientific notation

• Scientific notation: 2.1443352021 × 10¹⁰

Factors of 21443352021

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 841

Divisors of 21443352021

• Number of divisors d(n): 168
• Complete list of divisors:
  1 3 7 9 13 21 27 39 49 61 63 81 91 117 147 183 189 243 273 351 427 441 549 567 637 729 757 793 819 1053 1281 1323 1647 1701 1911 2271 2379 2457 2989 3159 3843 3969 4941 5103 5299 5551 5733 6813 7137 7371 8967 9477 9841 11529 11907 14823 15897 16653 17199 20439 21411 22113 26901 29523 34587 35721 37093 38857 44469 46177 47691 49959 51597 61317 64233 66339 68887 80703 88569 103761 111279 116571 138531 143073 149877 154791 183951 192699 206661 242109 265707 311283 323239 333837 349713 415593 429219 449631 464373 482209 551853 578097 600301 619983 726327 797121 969717 1001511 1049139 1246779 1287657 1348893 1446627 1800903 1859949 2178981 2262673 2391363 2909151 3004533 3147417 3740337 3862971 4046679 4202107 4339881 5402709 5579847 6788019 7174089 8727453 9013599 9442251 11221011 12606321 13019643 16208127 16739541 20364057 26182359 27040797 28326753 29414749 33663033 37818963 39058929 48624381 50218623 61092171 78547077 88244247 113456889 117176787 145873143 183276513 235641231 264732741 340370667 351530361 437619429 549829539 794198223 1021112001 1649488617 2382594669 3063336003 7147784007 21443352021
• Sum of all divisors σ(n): 40990569144
• Sum of proper divisors (its aliquot sum) s(n): 19547217123
• 21443352021 is a deficient number, because the sum of its proper divisors (19547217123) is less than itself. Its deficiency is 1896134898

Bases of 21443352021

• Binary: 10011111110000111111001010111010101₂
• Hexadecimal: 0x4FE1F95D5
• Base-36: 9UMTGB9

Squares and roots of 21443352021

• 21443352021 squared (21443352021²) is 459817345896524784441
• 21443352021 cubed (21443352021³) is 9860025213421100793319506705261
• The square root of 21443352021 is 146435.4875738801
• The cube root of 21443352021 is 2778.2045935739

Scales and comparisons

• 21,443,352,021 seconds is equal to 681 years, 43 weeks, 1 day, 22 hours, 40 minutes, 21 seconds.
• To count from 1 to 21,443,352,021 would take you about one thousand, three hundred sixty-three 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 21443352021 cubic inches would be around 231.5 feet tall.

Recreational maths with 21443352021

• 21443352021 backwards is 12025334412
• 21443352021 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21443352021's digits is 27
• More coming soon!