66942510642

Names of 66942510642

• Cardinal: 66942510642 can be written as Sixty-six billion, nine hundred forty-two million, five hundred ten thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 6.6942510642 × 10¹⁰

Factors of 66942510642

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 15599

Divisors of 66942510642

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 41 42 54 63 82 123 126 189 246 283 287 369 378 566 574 738 849 861 1107 1698 1722 1981 2214 2547 2583 3962 5094 5166 5943 7641 7749 11603 11886 15263 15282 15498 17829 23206 30526 34809 35658 45789 53487 69618 81221 91578 104427 106841 106974 137367 162442 208854 213682 243663 274734 313281 320523 412101 487326 625783 626562 641046 730989 824202 961569 1251566 1461978 1877349 1923138 2192967 2884707 3754698 4319429 4380481 4385934 5632047 5769414 8638858 8760962 11264094 12958287 13141443 16896141 25916574 26282886 30236003 33792282 38874861 39424329 60472006 77749722 78848658 90708009 116624583 118272987 177096589 181416018 233249166 236545974 272124027 354193178 531289767 544248054 816372081 1062579534 1239676123 1593869301 1632744162 2479352246 3187738602 3719028369 4781607903 7438056738 9563215806 11157085107 22314170214 33471255321 66942510642
• Sum of all divisors σ(n): 174786232320
• Sum of proper divisors (its aliquot sum) s(n): 107843721678
• 66942510642 is an abundant number, because the sum of its proper divisors (107843721678) is greater than itself. Its abundance is 40901211036

Bases of 66942510642

• Binary: 111110010110000101011010011000110010₂
• Hexadecimal: 0xF9615A632
• Base-36: UR3UBSI

Squares and roots of 66942510642

• 66942510642 squared (66942510642²) is 4481299731054283252164
• 66942510642 cubed (66942510642³) is 299989454936093094487670939529288
• The square root of 66942510642 is 258732.5078957029
• The cube root of 66942510642 is 4060.3860974191

Scales and comparisons

• 66,942,510,642 seconds is equal to 2,128 years, 29 weeks, 2 days, 13 hours, 50 minutes, 42 seconds.
• To count from 1 to 66,942,510,642 would take you about four thousand, two hundred fifty-seven 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 66942510642 cubic inches would be around 338.4 feet tall.

Recreational maths with 66942510642

• 66942510642 backwards is 24601524966
• The number of decimal digits it has is: 11
• The sum of 66942510642's digits is 45
• More coming soon!