1397

Names of 1397

• Cardinal: 1397 can be written as One thousand, three hundred ninety-seven.

Scientific notation

• Scientific notation: 1.397 × 10³

Factors of 1397

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 138

Divisors of 1397

• Number of divisors d(n): 4
• Complete list of divisors:
  1 11 127 1397
• Sum of all divisors σ(n): 1536
• Sum of proper divisors (its aliquot sum) s(n): 139
• 1397 is a deficient number, because the sum of its proper divisors (139) is less than itself. Its deficiency is 1258

Bases of 1397

• Binary: 10101110101₂
• Hexadecimal: 0x575
• Base-36: 12T

Squares and roots of 1397

• 1397 squared (1397²) is 1951609
• 1397 cubed (1397³) is 2726397773
• The square root of 1397 is 37.3764631821
• The cube root of 1397 is 11.1788930711

Scales and comparisons

• 1,397 seconds is equal to 23 minutes, 17 seconds.
• To count from 1 to 1,397 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 1397 cubic inches would be around 0.9 feet tall.

Recreational maths with 1397

• 1397 backwards is 7931
• The number of decimal digits it has is: 4
• The sum of 1397's digits is 20
• More coming soon!