21328146

Names of 21328146

• Cardinal: 21328146 can be written as Twenty-one million, three hundred twenty-eight thousand, one hundred forty-six.

Scientific notation

• Scientific notation: 2.1328146 × 10⁷

Factors of 21328146

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 241

Divisors of 21328146

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 14 18 19 21 38 42 57 59 63 114 118 126 133 151 171 177 266 302 342 354 399 413 453 531 798 826 906 1057 1062 1121 1197 1239 1359 2114 2242 2394 2478 2718 2869 3171 3363 3717 5738 6342 6726 7434 7847 8607 8909 9513 10089 15694 17214 17818 19026 20083 20178 23541 25821 26727 40166 47082 51642 53454 60249 62363 70623 80181 120498 124726 141246 160362 169271 180747 187089 338542 361494 374178 507813 561267 1015626 1122534 1184897 1523439 2369794 3046878 3554691 7109382 10664073 21328146
• Sum of all divisors σ(n): 56908800
• Sum of proper divisors (its aliquot sum) s(n): 35580654
• 21328146 is an abundant number, because the sum of its proper divisors (35580654) is greater than itself. Its abundance is 14252508

Bases of 21328146

• Binary: 1010001010111000100010010₂
• Hexadecimal: 0x1457112
• Base-36: CP4WI

Squares and roots of 21328146

• 21328146 squared (21328146²) is 454889811797316
• 21328146 cubed (21328146³) is 9701956319925678056136
• The square root of 21328146 is 4618.2405740713
• The cube root of 21328146 is 277.3220285677

Scales and comparisons

• 21,328,146 seconds is equal to 35 weeks, 1 day, 20 hours, 29 minutes, 6 seconds.
• To count from 1 to 21,328,146 would take you about six days!

  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 21328146 cubic inches would be around 23.1 feet tall.

Recreational maths with 21328146

• 21328146 backwards is 64182312
• The number of decimal digits it has is: 8
• The sum of 21328146's digits is 27
• More coming soon!