21195467964

Names of 21195467964

• Cardinal: 21195467964 can be written as Twenty-one billion, one hundred ninety-five million, four hundred sixty-seven thousand, nine hundred sixty-four.

Scientific notation

• Scientific notation: 2.1195467964 × 10¹⁰

Factors of 21195467964

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 73437

Divisors of 21195467964

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 81 99 108 132 162 198 243 297 324 396 486 594 729 891 972 1188 1458 1782 2187 2673 2916 3564 4374 5346 6561 8019 8748 10692 13122 16038 24057 26244 32076 48114 72171 73421 96228 144342 146842 220263 288684 293684 440526 660789 807631 881052 1321578 1615262 1982367 2422893 2643156 3230524 3964734 4845786 5947101 7268679 7929468 9691572 11894202 14537358 17841303 21806037 23788404 29074716 35682606 43612074 53523909 65418111 71365212 87224148 107047818 130836222 160571727 196254333 214095636 261672444 321143454 392508666 481715181 588762999 642286908 785017332 963430362 1177525998 1766288997 1926860724 2355051996 3532577994 5298866991 7065155988 10597733982 21195467964
• Sum of all divisors σ(n): 60693855768
• Sum of proper divisors (its aliquot sum) s(n): 39498387804
• 21195467964 is an abundant number, because the sum of its proper divisors (39498387804) is greater than itself. Its abundance is 18302919840

Bases of 21195467964

• Binary: 10011101111010110010010110010111100₂
• Hexadecimal: 0x4EF592CBC
• Base-36: 9QJ8FR0

Squares and roots of 21195467964

• 21195467964 squared (21195467964²) is 449247862212950305296
• 21195467964 cubed (21195467964³) is 9522018671430074341825387537344
• The square root of 21195467964 is 145586.6338782515
• The cube root of 21195467964 is 2767.4577744895

Scales and comparisons

• 21,195,467,964 seconds is equal to 673 years, 49 weeks, 2 days, 21 hours, 59 minutes, 24 seconds.
• To count from 1 to 21,195,467,964 would take you about one thousand, three hundred forty-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 21195467964 cubic inches would be around 230.6 feet tall.

Recreational maths with 21195467964

• 21195467964 backwards is 46976459112
• 21195467964 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21195467964's digits is 54
• More coming soon!