21095629828

Names of 21095629828

• Cardinal: 21095629828 can be written as Twenty-one billion, ninety-five million, six hundred twenty-nine thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1095629828 × 10¹⁰

Factors of 21095629828

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4692

Divisors of 21095629828

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 7 13 14 26 28 31 52 62 91 124 169 182 217 338 364 403 434 676 806 868 961 1183 1612 1922 2366 2821 3844 4639 4732 5239 5642 6727 9278 10478 11284 12493 13454 18556 20956 24986 26908 32473 36673 49972 60307 64946 73346 87451 120614 129892 143809 146692 162409 174902 241228 287618 324818 349804 422149 575236 649636 783991 844298 1006663 1136863 1567982 1688596 1869517 2013326 2273726 3135964 3739034 4026652 4458079 4547452 5487937 7478068 8916158 10975874 13086619 17832316 21951748 24303721 26173238 31206553 48607442 52346476 57955027 62413106 97214884 115910054 124826212 170126047 231820108 340252094 405685189 680504188 753415351 811370378 1506830702 1622740756 3013661404 5273907457 10547814914 21095629828
• Sum of all divisors σ(n): 47217864960
• Sum of proper divisors (its aliquot sum) s(n): 26122235132
• 21095629828 is an abundant number, because the sum of its proper divisors (26122235132) is greater than itself. Its abundance is 5026605304

Bases of 21095629828

• Binary: 10011101001011001011100010000000100₂
• Hexadecimal: 0x4E965C404
• Base-36: 9OVSK5G

Squares and roots of 21095629828

• 21095629828 squared (21095629828²) is 445025597840003309584
• 21095629828 cubed (21095629828³) is 9388095276017106189278948671552
• The square root of 21095629828 is 145243.3469319679
• The cube root of 21095629828 is 2763.1056997119

Scales and comparisons

• 21,095,629,828 seconds is equal to 670 years, 40 weeks, 2 days, 9 hours, 10 minutes, 28 seconds.
• To count from 1 to 21,095,629,828 would take you about one thousand, three hundred forty-one 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 21095629828 cubic inches would be around 230.3 feet tall.

Recreational maths with 21095629828

• 21095629828 backwards is 82892659012
• 21095629828 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21095629828's digits is 52
• More coming soon!