42749784

Names of 42749784

• Cardinal: 42749784 can be written as Forty-two million, seven hundred forty-nine thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 4.2749784 × 10⁷

Factors of 42749784

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 724

Divisors of 42749784

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 28 33 36 42 44 56 63 66 72 77 84 88 99 121 126 132 154 168 198 231 242 252 264 308 363 396 462 484 504 616 693 701 726 792 847 924 968 1089 1386 1402 1452 1694 1848 2103 2178 2541 2772 2804 2904 3388 4206 4356 4907 5082 5544 5608 6309 6776 7623 7711 8412 8712 9814 10164 12618 14721 15246 15422 16824 19628 20328 23133 25236 29442 30492 30844 39256 44163 46266 50472 53977 58884 60984 61688 69399 84821 88326 92532 107954 117768 138798 161931 169642 176652 185064 215908 254463 277596 323862 339284 353304 431816 485793 508926 555192 593747 647724 678568 763389 971586 1017852 1187494 1295448 1526778 1781241 1943172 2035704 2374988 3053556 3562482 3886344 4749976 5343723 6107112 7124964 10687446 14249928 21374892 42749784
• Sum of all divisors σ(n): 145650960
• Sum of proper divisors (its aliquot sum) s(n): 102901176
• 42749784 is an abundant number, because the sum of its proper divisors (102901176) is greater than itself. Its abundance is 60151392

Bases of 42749784

• Binary: 10100011000100111101011000₂
• Hexadecimal: 0x28C4F58
• Base-36: PG9Y0

Squares and roots of 42749784

• 42749784 squared (42749784²) is 1827544032046656
• 42749784 cubed (42749784³) is 78127112620483621922304
• The square root of 42749784 is 6538.3318973575
• The cube root of 42749784 is 349.6589439577

Scales and comparisons

• 42,749,784 seconds is equal to 1 year, 18 weeks, 4 days, 18 hours, 56 minutes, 24 seconds.
• To count from 1 to 42,749,784 would take you about two years!

  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 42749784 cubic inches would be around 29.1 feet tall.

Recreational maths with 42749784

• 42749784 backwards is 48794724
• The number of decimal digits it has is: 8
• The sum of 42749784's digits is 45
• More coming soon!