1128400387

Names of 1128400387

• Cardinal: 1128400387 can be written as One billion, one hundred twenty-eight million, four hundred thousand, three hundred eighty-seven.

Scientific notation

• Scientific notation: 1.128400387 × 10⁹

Factors of 1128400387

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 9189

Divisors of 1128400387

• Number of divisors d(n): 8
• Complete list of divisors:
  1 61 3037 6091 185257 371551 18498367 1128400387
• Sum of all divisors σ(n): 1147464752
• Sum of proper divisors (its aliquot sum) s(n): 19064365
• 1128400387 is a deficient number, because the sum of its proper divisors (19064365) is less than itself. Its deficiency is 1109336022

Bases of 1128400387

• Binary: 1000011010000100000011000000011₂
• Hexadecimal: 0x43420603
• Base-36: INTJB7

Squares and roots of 1128400387

• 1128400387 squared (1128400387²) is 1273287433381749769
• 1128400387 cubed (1128400387³) is 1436778032590203158076760603
• The square root of 1128400387 is 33591.6713933677
• The cube root of 1128400387 is 1041.0887227317

Scales and comparisons

• 1,128,400,387 seconds is equal to 35 years, 45 weeks, 5 days, 4 hours, 33 minutes, 7 seconds.
• To count from 1 to 1,128,400,387 would take you about seventy-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 1128400387 cubic inches would be around 86.8 feet tall.

Recreational maths with 1128400387

• 1128400387 backwards is 7830048211
• The number of decimal digits it has is: 10
• The sum of 1128400387's digits is 34
• More coming soon!