820157

820,157 is an odd composite number composed of three prime numbers multiplied together.

What does the number 820157 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

820157 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 820157:

13² × 23 × 211

(13 × 13 × 23 × 211)

See below for interesting mathematical facts about the number 820157 from the Numbermatics database.

Names of 820157

Cardinal: 820157 can be written as Eight hundred twenty thousand, one hundred fifty-seven.

Scientific notation

Scientific notation: 8.20157 × 10⁵

Factors of 820157

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 247

Divisors of 820157

Number of divisors d(n): 12
Complete list of divisors:
1 13 23 169 211 299 2743 3887 4853 35659 63089 820157
Sum of all divisors σ(n): 931104
Sum of proper divisors (its aliquot sum) s(n): 110947
820157 is a deficient number, because the sum of its proper divisors (110947) is less than itself. Its deficiency is 709210

Bases of 820157

Binary: 11001000001110111101₂
Hexadecimal: 0xC83BD
Base-36: HKU5

Squares and roots of 820157

820157 squared (820157²) is 672657504649
820157 cubed (820157³) is 551684761040409893
The square root of 820157 is 905.6251984127
The cube root of 820157 is 93.6049894459

Scales and comparisons

How big is 820157?

820,157 seconds is equal to 1 week, 2 days, 11 hours, 49 minutes, 17 seconds.
To count from 1 to 820,157 would take you about two days!

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 820157 cubic inches would be around 7.8 feet tall.

Recreational maths with 820157

820157 backwards is 751028
820157 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 820157's digits is 23
More coming soon!

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The information we have on file for 820157 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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