138542108880

Names of 138542108880

• Cardinal: 138542108880 can be written as One hundred thirty-eight billion, five hundred forty-two million, one hundred eight thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.3854210888 × 10¹¹

Factors of 138542108880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 82465558

Divisors of 138542108880

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 82465541 164931082 247396623 329862164 412327705 494793246 577258787 659724328 824655410 989586492 1154517574 1236983115 1319448656 1649310820 1731776361 1979172984 2309035148 2473966230 2886293935 3298621640 3463552722 3958345968 4618070296 4947932460 5772587870 6597243280 6927105444 8658881805 9236140592 9895864920 11545175740 13854210888 17317763610 19791729840 23090351480 27708421776 34635527220 46180702960 69271054440 138542108880
• Sum of all divisors σ(n): 490834905984
• Sum of proper divisors (its aliquot sum) s(n): 352292797104
• 138542108880 is an abundant number, because the sum of its proper divisors (352292797104) is greater than itself. Its abundance is 213750688224

Bases of 138542108880

• Binary: 10000001000001110000001101000011010000₂
• Hexadecimal: 0x2041C0D0D0
• Base-36: 1RN8E7DC

Squares and roots of 138542108880

• 138542108880 squared (138542108880²) is 19193915932917774854400
• 138542108880 cubed (138542108880³) is 2659165591011861139965610947072000
• The square root of 138542108880 is 372212.4512694327
• The cube root of 138542108880 is 5174.4071466287

Scales and comparisons

• 138,542,108,880 seconds is equal to 4,405 years, 10 weeks, 6 days, 15 hours, 8 minutes.
• To count from 1 to 138,542,108,880 would take you about eight thousand, eight hundred ten 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 138542108880 cubic inches would be around 431.2 feet tall.

Recreational maths with 138542108880

• 138542108880 backwards is 088801245831
• 138542108880 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138542108880's digits is 48
• More coming soon!