1386844728

Names of 1386844728

• Cardinal: 1386844728 can be written as One billion, three hundred eighty-six million, eight hundred forty-four thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.386844728 × 10⁹

Factors of 1386844728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5188

Divisors of 1386844728

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 29 58 87 116 174 232 348 421 696 842 1263 1684 2526 3368 4733 5052 9466 10104 12209 14199 18932 24418 28398 36627 37864 48836 56796 73254 97672 113592 137257 146508 274514 293016 411771 549028 823542 1098056 1647084 1992593 3294168 3985186 5977779 7970372 11955558 15940744 23911116 47822232 57785197 115570394 173355591 231140788 346711182 462281576 693422364 1386844728
• Sum of all divisors σ(n): 3595946400
• Sum of proper divisors (its aliquot sum) s(n): 2209101672
• 1386844728 is an abundant number, because the sum of its proper divisors (2209101672) is greater than itself. Its abundance is 822256944

Bases of 1386844728

• Binary: 1010010101010011001001000111000₂
• Hexadecimal: 0x52A99238
• Base-36: MXOW8O

Squares and roots of 1386844728

• 1386844728 squared (1386844728²) is 1923338299581393984
• 1386844728 cubed (1386844728³) is 2667371580934940853601316352
• The square root of 1386844728 is 37240.3642302273
• The cube root of 1386844728 is 1115.1739432491

Scales and comparisons

• 1,386,844,728 seconds is equal to 44 years, 5 weeks, 10 hours, 38 minutes, 48 seconds.
• To count from 1 to 1,386,844,728 would take you about eighty-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 1386844728 cubic inches would be around 92.9 feet tall.

Recreational maths with 1386844728

• 1386844728 backwards is 8274486831
• The number of decimal digits it has is: 10
• The sum of 1386844728's digits is 51
• More coming soon!