7142890755

Names of 7142890755

• Cardinal: 7142890755 can be written as Seven billion, one hundred forty-two million, eight hundred ninety thousand, seven hundred fifty-five.

Scientific notation

• Scientific notation: 7.142890755 × 10⁹

Factors of 7142890755

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 831

Divisors of 7142890755

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 7 11 13 15 21 33 35 39 55 59 65 77 91 105 121 143 165 177 195 231 273 295 363 385 413 429 455 605 649 715 733 767 847 885 1001 1155 1239 1365 1573 1815 1947 2065 2145 2199 2301 2541 3003 3245 3665 3835 4235 4543 4719 5005 5131 5369 6195 7139 7865 8063 8437 9529 9735 10995 11011 11505 12705 13629 15015 15393 16107 21417 22715 23595 24189 25311 25655 26845 28587 33033 35695 40315 42185 43247 47645 49973 55055 56441 59059 66703 68145 76965 80535 88693 92807 104819 107085 120945 126555 129741 142935 149919 165165 169323 177177 200109 216235 249865 266079 278421 282205 295295 302729 314457 333515 443465 464035 475717 524095 562211 620851 648705 649649 733733 749595 846615 885885 908187 1000545 1153009 1330395 1392105 1427151 1513645 1572285 1686633 1862553 1948947 2201199 2378585 2811055 3104255 3248245 3330019 3459027 3668665 3935477 4540935 5232887 5765045 6184321 7135755 8071063 8433165 9312765 9744735 9990057 11005995 11806431 15698661 16650095 17295135 18552963 19677385 24213189 26164435 30921605 36630209 40355315 43290247 49950285 59032155 68027531 78493305 92764815 109890627 121065945 129870741 183151045 204082593 216451235 340137655 476192717 549453135 649353705 1020412965 1428578151 2380963585 7142890755
• Sum of all divisors σ(n): 15744476160
• Sum of proper divisors (its aliquot sum) s(n): 8601585405
• 7142890755 is an abundant number, because the sum of its proper divisors (8601585405) is greater than itself. Its abundance is 1458694650

Bases of 7142890755

• Binary: 110101001101111111101110100000011₂
• Hexadecimal: 0x1A9BFDD03
• Base-36: 3A4OXS3

Squares and roots of 7142890755

• 7142890755 squared (7142890755²) is 51020888337864470025
• 7142890755 cubed (7142890755³) is 364436631620419439384547118875
• The square root of 7142890755 is 84515.6243247365
• The cube root of 7142890755 is 1925.8598063841

Scales and comparisons

• 7,142,890,755 seconds is equal to 227 years, 6 weeks, 2 days, 8 hours, 19 minutes, 15 seconds.
• To count from 1 to 7,142,890,755 would take you about four hundred fifty-four 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 7142890755 cubic inches would be around 160.5 feet tall.

Recreational maths with 7142890755

• 7142890755 backwards is 5570982417
• The number of decimal digits it has is: 10
• The sum of 7142890755's digits is 48
• More coming soon!