1,390 is an even composite number composed of three prime numbers multiplied together.

What does the number 1390 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

1390 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 1390:

2 × 5 × 139

See below for interesting mathematical facts about the number 1390 from the Numbermatics database.

Names of 1390

  • Cardinal: 1390 can be written as One thousand, three hundred ninety.

Scientific notation

  • Scientific notation: 1.39 × 103

Factors of 1390

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 146

Divisors of 1390

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 2520
  • Sum of proper divisors (its aliquot sum) s(n): 1130
  • 1390 is a deficient number, because the sum of its proper divisors (1130) is less than itself. Its deficiency is 260

Bases of 1390

  • Binary: 101011011102
  • Hexadecimal: 0x56E
  • Base-36: 12M

Squares and roots of 1390

  • 1390 squared (13902) is 1932100
  • 1390 cubed (13903) is 2685619000
  • The square root of 1390 is 37.2827037649
  • The cube root of 1390 is 11.1601902991

Scales and comparisons

How big is 1390?
  • 1,390 seconds is equal to 23 minutes, 10 seconds.
  • To count from 1 to 1,390 would take you about twenty-three minutes.

    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 1390 cubic inches would be around 0.9 feet tall.

Recreational maths with 1390

  • 1390 backwards is 0931
  • The number of decimal digits it has is: 4
  • The sum of 1390's digits is 13
  • More coming soon!

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"Number 1390 - Facts about the integer". Numbermatics.com. 2023. Web. 1 April 2023.

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Numbermatics. (2023). Number 1390 - Facts about the integer. Retrieved 1 April 2023, from https://numbermatics.com/n/1390/

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Numbermatics. 2023. "Number 1390 - Facts about the integer". https://numbermatics.com/n/1390/

The information we have on file for 1390 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

Keywords: Divisors of 1390, math, Factors of 1390, curriculum, school, college, exams, university, Prime factorization of 1390, STEM, science, technology, engineering, physics, economics, calculator, one thousand, three hundred ninety.

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