12138777435420

Names of 12138777435420

• Cardinal: 12138777435420 can be written as Twelve trillion, one hundred thirty-eight billion, seven hundred seventy-seven million, four hundred thirty-five thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.213877743542 × 10¹³

Factors of 12138777435420

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7493072501

Divisors of 12138777435420

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 810 1620 7493072491 14986144982 22479217473 29972289964 37465362455 44958434946 67437652419 74930724910 89916869892 112396087365 134875304838 149861449820 202312957257 224792174730 269750609676 337188262095 404625914514 449584349460 606938871771 674376524190 809251829028 1011564786285 1213877743542 1348753048380 2023129572570 2427755487084 3034694358855 4046259145140 6069388717710 12138777435420
• Sum of all divisors σ(n): 38079794404344
• Sum of proper divisors (its aliquot sum) s(n): 25941016968924
• 12138777435420 is an abundant number, because the sum of its proper divisors (25941016968924) is greater than itself. Its abundance is 13802239533504

Bases of 12138777435420

• Binary: 10110000101001000111100001000101110100011100₂
• Hexadecimal: 0xB0A47845D1C
• Base-36: 4AWH6O5R0

Squares and roots of 12138777435420

• 12138777435420 squared (12138777435420²) is 147349917626661752270576400
• 12138777435420 cubed (12138777435420³) is 1788647855197517398242830754717176088000
• The square root of 12138777435420 is 3484074.8320637431
• The cube root of 12138777435420 is 22982.2026374135

Scales and comparisons

• 12,138,777,435,420 seconds is equal to 385,975 years, 29 weeks, 6 days, 4 hours, 57 minutes.
• To count from 1 to 12,138,777,435,420 would take you about nine hundred sixty-four thousand, nine hundred thirty-eight 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 12138777435420 cubic inches would be around 1915.2 feet tall.

Recreational maths with 12138777435420

• 12138777435420 backwards is 02453477783121
• 12138777435420 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 12138777435420's digits is 54
• More coming soon!