645996

645,996 is an even composite number composed of five prime numbers multiplied together.

What does the number 645996 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

645996 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 645996:

2² × 3 × 13 × 41 × 101

(2 × 2 × 3 × 13 × 41 × 101)

See below for interesting mathematical facts about the number 645996 from the Numbermatics database.

Names of 645996

Cardinal: 645996 can be written as Six hundred forty-five thousand, nine hundred ninety-six.

Scientific notation

Scientific notation: 6.45996 × 10⁵

Factors of 645996

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 160

Divisors of 645996

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 12 13 26 39 41 52 78 82 101 123 156 164 202 246 303 404 492 533 606 1066 1212 1313 1599 2132 2626 3198 3939 4141 5252 6396 7878 8282 12423 15756 16564 24846 49692 53833 107666 161499 215332 322998 645996
Sum of all divisors σ(n): 1679328
Sum of proper divisors (its aliquot sum) s(n): 1033332
645996 is an abundant number, because the sum of its proper divisors (1033332) is greater than itself. Its abundance is 387336

Bases of 645996

Binary: 10011101101101101100₂
Hexadecimal: 0x9DB6C
Base-36: DUGC

Squares and roots of 645996

645996 squared (645996²) is 417310832016
645996 cubed (645996³) is 269581128239007936
The square root of 645996 is 803.7387635297
The cube root of 645996 is 86.4456762943

Scales and comparisons

How big is 645996?

645,996 seconds is equal to 1 week, 11 hours, 26 minutes, 36 seconds.
To count from 1 to 645,996 would take you about eleven 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 645996 cubic inches would be around 7.2 feet tall.

Recreational maths with 645996

645996 backwards is 699546
645996 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 645996's digits is 39
More coming soon!

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The information we have on file for 645996 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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