21365831424

Names of 21365831424

• Cardinal: 21365831424 can be written as Twenty-one billion, three hundred sixty-five million, eight hundred thirty-one thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1365831424 × 10¹⁰

Factors of 21365831424

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 9694

Divisors of 21365831424

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 59 64 84 96 98 112 118 128 147 168 177 192 196 224 236 256 294 336 354 384 392 413 448 472 588 672 708 768 784 826 896 944 1176 1239 1344 1416 1568 1652 1792 1888 2352 2478 2688 2832 2891 3136 3304 3776 4704 4956 5376 5664 5782 6272 6608 7552 8673 9408 9623 9912 11328 11564 12544 13216 15104 17346 18816 19246 19824 22656 23128 26432 28869 34692 37632 38492 39648 45312 46256 52864 57738 67361 69384 76984 79296 92512 105728 115476 134722 138768 153968 158592 185024 202083 230952 269444 277536 307936 317184 370048 404166 461904 471527 538888 555072 567757 615872 740096 808332 923808 943054 1077776 1110144 1135514 1231744 1414581 1616664 1703271 1847616 1886108 2155552 2220288 2271028 2463488 2829162 3233328 3406542 3695232 3772216 3974299 4311104 4542056 5658324 6466656 6813084 7390464 7544432 7948598 8622208 9084112 11316648 11922897 12933312 13626168 15088864 15897196 17244416 18168224 22633296 23845794 25866624 27252336 27820093 30177728 31794392 36336448 45266592 47691588 51733248 54504672 55640186 60355456 63588784 72672896 83460279 90533184 95383176 109009344 111280372 120710912 127177568 145345792 166920558 181066368 190766352 218018688 222560744 254355136 333841116 362132736 381532704 436037376 445121488 508710272 667682232 763065408 890242976 1017420544 1335364464 1526130816 1780485952 2670728928 3052261632 3560971904 5341457856 7121943808 10682915712 21365831424
• Sum of all divisors σ(n): 67276379520
• Sum of proper divisors (its aliquot sum) s(n): 45910548096
• 21365831424 is an abundant number, because the sum of its proper divisors (45910548096) is greater than itself. Its abundance is 24544716672

Bases of 21365831424

• Binary: 10011111001100000001011011100000000₂
• Hexadecimal: 0x4F980B700
• Base-36: 9TCNX1C

Squares and roots of 21365831424

• 21365831424 squared (21365831424²) is 456498752438785867776
• 21365831424 cubed (21365831424³) is 9753475389873407730135569793024
• The square root of 21365831424 is 146170.5559406545
• The cube root of 21365831424 is 2774.8526902405

Scales and comparisons

• 21,365,831,424 seconds is equal to 679 years, 19 weeks, 17 hours, 10 minutes, 24 seconds.
• To count from 1 to 21,365,831,424 would take you about one thousand, three hundred fifty-eight 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 21365831424 cubic inches would be around 231.2 feet tall.

Recreational maths with 21365831424

• 21365831424 backwards is 42413856312
• The number of decimal digits it has is: 11
• The sum of 21365831424's digits is 39
• More coming soon!