138645564800

Names of 138645564800

• Cardinal: 138645564800 can be written as One hundred thirty-eight billion, six hundred forty-five million, five hundred sixty-four thousand, eight hundred.

Scientific notation

• Scientific notation: 1.386455648 × 10¹¹

Factors of 138645564800

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 180027

Divisors of 138645564800

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 241 320 400 482 640 800 964 1205 1600 1928 2410 3200 3856 4820 6025 7712 9640 12050 15424 19280 24100 30848 38560 48200 77120 96400 154240 179779 192800 359558 385600 719116 771200 898895 1438232 1797790 2876464 3595580 4494475 5752928 7191160 8988950 11505856 14382320 17977900 23011712 28764640 35955800 43326739 57529280 71911600 86653478 115058560 143823200 173306956 216633695 287646400 346613912 433267390 575292800 693227824 866534780 1083168475 1386455648 1733069560 2166336950 2772911296 3466139120 4332673900 5545822592 6932278240 8665347800 13864556480 17330695600 27729112960 34661391200 69322782400 138645564800
• Sum of all divisors σ(n): 343920937800
• Sum of proper divisors (its aliquot sum) s(n): 205275373000
• 138645564800 is an abundant number, because the sum of its proper divisors (205275373000) is greater than itself. Its abundance is 66629808200

Bases of 138645564800

• Binary: 10000001000111111010110110110110000000₂
• Hexadecimal: 0x2047EB6D80
• Base-36: 1ROXZMGW

Squares and roots of 138645564800

• 138645564800 squared (138645564800²) is 19222592638710999040000
• 138645564800 cubed (138645564800³) is 2665127213314408805873057792000000
• The square root of 138645564800 is 372351.3996213791
• The cube root of 138645564800 is 5175.6948173621

Scales and comparisons

• 138,645,564,800 seconds is equal to 4,408 years, 26 weeks, 53 minutes, 20 seconds.
• To count from 1 to 138,645,564,800 would take you about eight thousand, eight hundred seventeen 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 138645564800 cubic inches would be around 431.3 feet tall.

Recreational maths with 138645564800

• 138645564800 backwards is 008465546831
• 138645564800 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138645564800's digits is 50
• More coming soon!