21432513672

Names of 21432513672

• Cardinal: 21432513672 can be written as Twenty-one billion, four hundred thirty-two million, five hundred thirteen thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1432513672 × 10¹⁰

Factors of 21432513672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3884

Divisors of 21432513672

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 241 379 482 723 758 964 1137 1446 1516 1928 2169 2274 2892 3032 3259 3411 4338 4548 5784 6518 6822 8676 9096 9777 13036 13644 17352 19554 26072 27288 29331 39108 58662 78216 91339 117324 182678 234648 274017 365356 548034 730712 785419 822051 1096068 1235161 1570838 1644102 2192136 2356257 2470322 3141676 3288204 3705483 4712514 4940644 6283352 6576408 7068771 7410966 9425028 9881288 11116449 14137542 14821932 18850056 22232898 28275084 29643864 44465796 56550168 88931592 297673801 595347602 893021403 1190695204 1786042806 2381390408 2679064209 3572085612 5358128418 7144171224 10716256836 21432513672
• Sum of all divisors σ(n): 58458972000
• Sum of proper divisors (its aliquot sum) s(n): 37026458328
• 21432513672 is an abundant number, because the sum of its proper divisors (37026458328) is greater than itself. Its abundance is 15593944656

Bases of 21432513672

• Binary: 10011111101011110100011010010001000₂
• Hexadecimal: 0x4FD7A3488
• Base-36: 9UGD5E0

Squares and roots of 21432513672

• 21432513672 squared (21432513672²) is 459352642300466923584
• 21432513672 cubed (21432513672³) is 9845081786374082871697859240448
• The square root of 21432513672 is 146398.4756478017
• The cube root of 21432513672 is 2777.7364418671

Scales and comparisons

• 21,432,513,672 seconds is equal to 681 years, 25 weeks, 2 days, 12 hours, 1 minute, 12 seconds.
• To count from 1 to 21,432,513,672 would take you about one thousand, three hundred sixty-two 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 21432513672 cubic inches would be around 231.5 feet tall.

Recreational maths with 21432513672

• 21432513672 backwards is 27631523412
• 21432513672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21432513672's digits is 36
• More coming soon!