21825342

Names of 21825342

• Cardinal: 21825342 can be written as Twenty-one million, eight hundred twenty-five thousand, three hundred forty-two.

Scientific notation

• Scientific notation: 2.1825342 × 10⁷

Factors of 21825342

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 233

Divisors of 21825342

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 29 33 42 54 58 63 66 77 87 99 126 154 174 181 189 198 203 231 261 297 319 362 378 406 462 522 543 594 609 638 693 783 957 1086 1218 1267 1386 1566 1629 1827 1914 1991 2079 2233 2534 2871 3258 3654 3801 3982 4158 4466 4887 5249 5481 5742 5973 6699 7602 8613 9774 10498 10962 11403 11946 13398 13937 15747 17226 17919 20097 22806 27874 31494 34209 35838 36743 40194 41811 47241 53757 57739 60291 68418 73486 83622 94482 107514 110229 115478 120582 125433 141723 173217 220458 250866 283446 330687 346434 376299 404173 519651 661374 752598 808346 992061 1039302 1212519 1558953 1984122 2425038 3117906 3637557 7275114 10912671 21825342
• Sum of all divisors σ(n): 62899200
• Sum of proper divisors (its aliquot sum) s(n): 41073858
• 21825342 is an abundant number, because the sum of its proper divisors (41073858) is greater than itself. Its abundance is 19248516

Bases of 21825342

• Binary: 1010011010000011100111110₂
• Hexadecimal: 0x14D073E
• Base-36: CZSJI

Squares and roots of 21825342

• 21825342 squared (21825342²) is 476345553416964
• 21825342 cubed (21825342³) is 10396404613504507901688
• The square root of 21825342 is 4671.7600537699
• The cube root of 21825342 is 279.4604490659

Scales and comparisons

• 21,825,342 seconds is equal to 36 weeks, 14 hours, 35 minutes, 42 seconds.
• To count from 1 to 21,825,342 would take you about two weeks!

  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 21825342 cubic inches would be around 23.3 feet tall.

Recreational maths with 21825342

• 21825342 backwards is 24352812
• 21825342 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21825342's digits is 27
• More coming soon!