21269430

Names of 21269430

• Cardinal: 21269430 can be written as Twenty-one million, two hundred sixty-nine thousand, four hundred thirty.

Scientific notation

• Scientific notation: 2.126943 × 10⁷

Factors of 21269430

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 83

Divisors of 21269430

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 35 39 42 45 49 53 63 65 70 78 90 91 98 105 106 117 126 130 147 159 182 195 210 234 245 265 273 294 315 318 343 371 390 441 455 477 490 530 546 585 630 637 686 689 735 742 795 819 882 910 954 1029 1113 1170 1274 1365 1378 1470 1590 1638 1715 1855 1911 2058 2067 2205 2226 2385 2597 2730 3087 3185 3339 3430 3445 3710 3822 4095 4134 4410 4459 4770 4823 5145 5194 5565 5733 6174 6201 6370 6678 6890 7791 8190 8918 9555 9646 10290 10335 11130 11466 12402 12985 13377 14469 15435 15582 16695 18179 19110 20670 22295 23373 24115 25970 26754 28665 28938 30870 31005 33390 33761 36358 38955 40131 43407 44590 46746 48230 54537 57330 62010 66885 67522 72345 77910 80262 86814 90895 101283 109074 116865 133770 144690 163611 168805 181790 200655 202566 217035 233730 236327 272685 303849 327222 337610 401310 434070 472654 506415 545370 607698 708981 818055 1012830 1181635 1417962 1519245 1636110 2126943 2363270 3038490 3544905 4253886 7089810 10634715 21269430
• Sum of all divisors σ(n): 70761600
• Sum of proper divisors (its aliquot sum) s(n): 49492170
• 21269430 is an abundant number, because the sum of its proper divisors (49492170) is greater than itself. Its abundance is 28222740

Bases of 21269430

• Binary: 1010001001000101110110110₂
• Hexadecimal: 0x1448BB6
• Base-36: CNVLI

Squares and roots of 21269430

• 21269430 squared (21269430²) is 452388652524900
• 21269430 cubed (21269430³) is 9622048777672683807000
• The square root of 21269430 is 4611.8792265193
• The cube root of 21269430 is 277.0673071679

Scales and comparisons

• 21,269,430 seconds is equal to 35 weeks, 1 day, 4 hours, 10 minutes, 30 seconds.
• To count from 1 to 21,269,430 would take you about five 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 21269430 cubic inches would be around 23.1 feet tall.

Recreational maths with 21269430

• 21269430 backwards is 03496212
• The number of decimal digits it has is: 8
• The sum of 21269430's digits is 27
• More coming soon!