138978952845819904

Names of 138978952845819904

• Cardinal: 138978952845819904 can be written as One hundred thirty-eight quadrillion, nine hundred seventy-eight trillion, nine hundred fifty-two billion, eight hundred forty-five million, eight hundred nineteen thousand, nine hundred four.

Scientific notation

• Scientific notation: 1.38978952845819904 × 10¹⁷

Factors of 138978952845819904

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 16189

Divisors of 138978952845819904

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16187 16384 32374 32768 64748 129496 258992 517984 1035968 2071936 4143872 8287744 16575488 33150976 66301952 132603904 262018969 265207808 524037938 530415616 1048075876 2096151752 4192303504 8384607008 16769214016 33538428032 67076856064 134153712128 268307424256 536614848512 1073229697024 2146459394048 4292918788096 8585837576192
• Sum of all divisors σ(n): 138987539482257707
• Sum of proper divisors (its aliquot sum) s(n): 8586636437803
• 138978952845819904 is a deficient number, because the sum of its proper divisors (8586636437803) is less than itself. Its deficiency is 138970366209382101

Bases of 138978952845819904

• Binary: 111101101110000001001111100001011101000011000000000000000₂
• Hexadecimal: 0x1EDC09F0BA18000
• Base-36: 120FXDJ66B5S

Squares and roots of 138978952845819904

• 138978952845819904 squared (138978952845819904²) is 19315149334120632392732526002569216
• 138978952845819904 cubed (138978952845819904³) is 2684399228516721087050796094990134388312230030475264
• The square root of 138978952845819904 is 372798810.1453918321
• 138978952845819904 is a perfect cube number. Its cube root is 517984

Scales and comparisons

• 138,978,952,845,819,904 seconds is equal to 4,419,100,810 years, 19 weeks, 1 day, 18 hours, 25 minutes, 4 seconds.
• To count from 1 to 138,978,952,845,819,904 would take you about thirteen billion, two hundred fifty-seven million, three hundred two thousand, four hundred thirty-one 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 138978952845819904 cubic inches would be around 43165.3 feet tall.

Recreational maths with 138978952845819904

• 138978952845819904 backwards is 409918548259879831
• The number of decimal digits it has is: 18
• The sum of 138978952845819904's digits is 100
• More coming soon!