7145815842

Names of 7145815842

• Cardinal: 7145815842 can be written as Seven billion, one hundred forty-five million, eight hundred fifteen thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 7.145815842 × 10⁹

Factors of 7145815842

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 130

Divisors of 7145815842

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 53 54 61 66 99 106 122 159 183 198 297 318 366 477 549 583 594 671 954 1098 1166 1342 1431 1647 1749 2013 2862 3233 3294 3498 3721 4026 5247 6039 6466 7442 9699 10494 11163 12078 15741 18117 19398 22326 29097 31482 33489 35563 36234 40931 58194 66978 71126 81862 87291 100467 106689 122793 174582 197213 200934 213378 226981 245586 320067 368379 394426 453962 591639 640134 680943 736758 960201 1105137 1183278 1361886 1774917 1920402 2042829 2169343 2210274 2496791 3549834 4085658 4338686 4993582 5324751 6128487 6508029 7490373 10649502 12029993 12256974 13016058 14980746 19524087 22471119 24059986 36089979 39048174 44942238 58572261 67413357 72179958 108269937 117144522 132329923 134826714 216539874 264659846 324809811 396989769 649619622 793979538 1190969307 2381938614 3572907921 7145815842
• Sum of all divisors σ(n): 17944208640
• Sum of proper divisors (its aliquot sum) s(n): 10798392798
• 7145815842 is an abundant number, because the sum of its proper divisors (10798392798) is greater than itself. Its abundance is 3652576956

Bases of 7145815842

• Binary: 110101001111011000111111100100010₂
• Hexadecimal: 0x1A9EC7F22
• Base-36: 3A6FMSI

Squares and roots of 7145815842

• 7145815842 squared (7145815842²) is 51062684047778168964
• 7145815842 cubed (7145815842³) is 364884536603653924684703927688
• The square root of 7145815842 is 84532.9275608031
• The cube root of 7145815842 is 1926.1226569529

Scales and comparisons

• 7,145,815,842 seconds is equal to 227 years, 11 weeks, 1 day, 4 hours, 50 minutes, 42 seconds.
• To count from 1 to 7,145,815,842 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 7145815842 cubic inches would be around 160.5 feet tall.

Recreational maths with 7145815842

• 7145815842 backwards is 2485185417
• The number of decimal digits it has is: 10
• The sum of 7145815842's digits is 45
• More coming soon!