138893541544

Names of 138893541544

• Cardinal: 138893541544 can be written as One hundred thirty-eight billion, eight hundred ninety-three million, five hundred forty-one thousand, five hundred forty-four.

Scientific notation

• Scientific notation: 1.38893541544 × 10¹¹

Factors of 138893541544

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 129478

Divisors of 138893541544

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 31 61 62 71 122 124 142 244 248 284 488 568 1891 2201 3782 4331 4402 7564 8662 8804 15128 17324 17608 34648 129313 134261 258626 268522 517252 537044 1034504 1074088 4008703 7888093 8017406 9181223 15776186 16034812 18362446 31552372 32069624 36724892 63104744 73449784 244530883 284617913 489061766 560054603 569235826 978123532 1120109206 1138471652 1956247064 2240218412 2276943304 4480436824 17361692693 34723385386 69446770772 138893541544
• Sum of all divisors σ(n): 277083694080
• Sum of proper divisors (its aliquot sum) s(n): 138190152536
• 138893541544 is a deficient number, because the sum of its proper divisors (138190152536) is less than itself. Its deficiency is 703389008

Bases of 138893541544

• Binary: 10000001010110101100110100000010101000₂
• Hexadecimal: 0x2056B340A8
• Base-36: 1RT1MMJS

Squares and roots of 138893541544

• 138893541544 squared (138893541544²) is 19291415882634853903936
• 138893541544 cubed (138893541544³) is 2679453073337325508888705401117184
• The square root of 138893541544 is 372684.2383895513
• The cube root of 138893541544 is 5178.7786701355

Scales and comparisons

• 138,893,541,544 seconds is equal to 4,416 years, 20 weeks, 3 hours, 19 minutes, 4 seconds.
• To count from 1 to 138,893,541,544 would take you about eight thousand, eight hundred thirty-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 138893541544 cubic inches would be around 431.6 feet tall.

Recreational maths with 138893541544

• 138893541544 backwards is 445145398831
• The number of decimal digits it has is: 12
• The sum of 138893541544's digits is 55
• More coming soon!