72105

72,105 is an odd composite number composed of five prime numbers multiplied together.

What does the number 72105 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 32 divisors.

72105 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 72105:

3 × 5 × 11 × 19 × 23

See below for interesting mathematical facts about the number 72105 from the Numbermatics database.

Names of 72105

Cardinal: 72105 can be written as Seventy-two thousand, one hundred five.

Scientific notation

Scientific notation: 7.2105 × 10⁴

Factors of 72105

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 61

Divisors of 72105

Number of divisors d(n): 32
Complete list of divisors:
1 3 5 11 15 19 23 33 55 57 69 95 115 165 209 253 285 345 437 627 759 1045 1265 1311 2185 3135 3795 4807 6555 14421 24035 72105
Sum of all divisors σ(n): 138240
Sum of proper divisors (its aliquot sum) s(n): 66135
72105 is a deficient number, because the sum of its proper divisors (66135) is less than itself. Its deficiency is 5970

Bases of 72105

Binary: 10001100110101001₂
Hexadecimal: 0x119A9
Base-36: 1JMX

Squares and roots of 72105

72105 squared (72105²) is 5199131025
72105 cubed (72105³) is 374883342557625
The square root of 72105 is 268.5237419671
The cube root of 72105 is 41.6218896755

Scales and comparisons

How big is 72105?

72,105 seconds is equal to 20 hours, 1 minute, 45 seconds.
To count from 1 to 72,105 would take you about twenty 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 72105 cubic inches would be around 3.5 feet tall.

Recreational maths with 72105

72105 backwards is 50127
72105 is a Harshad number.
The number of decimal digits it has is: 5
The sum of 72105's digits is 15
More coming soon!

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The information we have on file for 72105 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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