21451122

Names of 21451122

• Cardinal: 21451122 can be written as Twenty-one million, four hundred fifty-one thousand, one hundred twenty-two.

Scientific notation

• Scientific notation: 2.1451122 × 10⁷

Factors of 21451122

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 90

Divisors of 21451122

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 49 54 63 66 67 77 98 99 121 126 134 147 154 189 198 201 231 242 294 297 363 378 402 441 462 469 539 594 603 693 726 737 847 882 938 1078 1089 1206 1323 1386 1407 1474 1617 1694 1809 2079 2178 2211 2541 2646 2814 3234 3267 3283 3618 4158 4221 4422 4851 5082 5159 5929 6534 6566 6633 7623 8107 8442 9702 9849 10318 11858 12663 13266 14553 15246 15477 16214 17787 19698 19899 22869 24321 25326 29106 29547 30954 35574 36113 39798 45738 46431 48642 53361 56749 59094 72226 72963 88641 92862 106722 108339 113498 139293 145926 160083 170247 177282 216678 218889 278586 320166 325017 340494 397243 437778 510741 650034 794486 975051 1021482 1191729 1532223 1950102 2383458 3064446 3575187 7150374 10725561 21451122
• Sum of all divisors σ(n): 61860960
• Sum of proper divisors (its aliquot sum) s(n): 40409838
• 21451122 is an abundant number, because the sum of its proper divisors (40409838) is greater than itself. Its abundance is 18958716

Bases of 21451122

• Binary: 1010001110101000101110010₂
• Hexadecimal: 0x1475172
• Base-36: CRRSI

Squares and roots of 21451122

• 21451122 squared (21451122²) is 460150635058884
• 21451122 cubed (21451122³) is 9870747411025597867848
• The square root of 21451122 is 4631.5355984813
• The cube root of 21451122 is 277.8540113017

Scales and comparisons

• 21,451,122 seconds is equal to 35 weeks, 3 days, 6 hours, 38 minutes, 42 seconds.
• To count from 1 to 21,451,122 would take you about nine hours!

  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 21451122 cubic inches would be around 23.2 feet tall.

Recreational maths with 21451122

• 21451122 backwards is 22115412
• 21451122 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21451122's digits is 18
• More coming soon!