21429954

Names of 21429954

• Cardinal: 21429954 can be written as Twenty-one million, four hundred twenty-nine thousand, nine hundred fifty-four.

Scientific notation

• Scientific notation: 2.1429954 × 10⁷

Factors of 21429954

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 114

Divisors of 21429954

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 49 54 63 78 89 91 98 117 126 147 178 182 189 234 267 273 294 343 351 378 441 534 546 623 637 686 702 801 819 882 1029 1157 1246 1274 1323 1602 1638 1869 1911 2058 2314 2403 2457 2646 3087 3471 3738 3822 4361 4459 4806 4914 5607 5733 6174 6942 8099 8722 8918 9261 10413 11214 11466 13083 13377 16198 16821 17199 18522 20826 24297 26166 26754 30527 31239 33642 34398 39249 40131 48594 56693 61054 62478 72891 78498 80262 91581 113386 117747 120393 145782 170079 183162 218673 235494 240786 274743 340158 396851 437346 510237 549486 793702 824229 1020474 1190553 1530711 1648458 2381106 3061422 3571659 7143318 10714977 21429954
• Sum of all divisors σ(n): 60480000
• Sum of proper divisors (its aliquot sum) s(n): 39050046
• 21429954 is an abundant number, because the sum of its proper divisors (39050046) is greater than itself. Its abundance is 17620092

Bases of 21429954

• Binary: 1010001101111111011000010₂
• Hexadecimal: 0x146FEC2
• Base-36: CRBGI

Squares and roots of 21429954

• 21429954 squared (21429954²) is 459242928442116
• 21429954 cubed (21429954³) is 9841554831339837542664
• The square root of 21429954 is 4629.2498312361
• The cube root of 21429954 is 277.7625856343

Scales and comparisons

• 21,429,954 seconds is equal to 35 weeks, 3 days, 45 minutes, 54 seconds.
• To count from 1 to 21,429,954 would take you about eight minutes!

  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 21429954 cubic inches would be around 23.1 feet tall.

Recreational maths with 21429954

• 21429954 backwards is 45992412
• The number of decimal digits it has is: 8
• The sum of 21429954's digits is 36
• More coming soon!