667421

667,421 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.

What does the number 667421 look like?

As a prime, it is not composed of any other numbers and has no internal structure.

667421 is a prime number. Like all primes (except two), it is an odd number.

Prime factorization of 667421:

667421

See below for interesting mathematical facts about the number 667421 from the Numbermatics database.

Names of 667421

Cardinal: 667421 can be written as Six hundred sixty-seven thousand, four hundred twenty-one.

Scientific notation

Scientific notation: 6.67421 × 10⁵

Factors of 667421

Number of distinct prime factors ω(n): 1
Total number of prime factors Ω(n): 1
Sum of prime factors: 667421

Divisors of 667421

Number of divisors d(n): 2
Complete list of divisors:
1 667421
Sum of all divisors σ(n): 667422
Sum of proper divisors (its aliquot sum) s(n): 1
667421 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 667420

Bases of 667421

Binary: 10100010111100011101₂
Hexadecimal: 0xA2F1D
Base-36: EAZH

Squares and roots of 667421

667421 squared (667421²) is 445450791241
667421 cubed (667421³) is 297303212540859461
The square root of 667421 is 816.9583832729
The cube root of 667421 is 87.3909825975

Scales and comparisons

How big is 667421?

667,421 seconds is equal to 1 week, 17 hours, 23 minutes, 41 seconds.
To count from 1 to 667,421 would take you about seventeen hours!

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 667421 cubic inches would be around 7.3 feet tall.

Recreational maths with 667421

667421 backwards is 124766
667421 is a twin prime! Its twin is 667423
The number of decimal digits it has is: 6
The sum of 667421's digits is 26
More coming soon!

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The information we have on file for 667421 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!

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