# 642827257939177921

## 642,827,257,939,177,921 is an odd composite number. It is composed of a single prime number multiplied by itself five times.

What does the number 642827257939177921 look like?

This visualization shows the relationship between its 1 prime factors (large circles) and 7 divisors.

642827257939177921 is an odd composite number. It is composed of one distinct prime number multiplied by itself five times. It has a total of seven divisors.

## Prime factorization of 642827257939177921:

### 9296

(929 × 929 × 929 × 929 × 929 × 929)

See below for interesting mathematical facts about the number 642827257939177921 from the Numbermatics database.

### Names of 642827257939177921

• Cardinal: 642827257939177921 can be written as Six hundred forty-two quadrillion, eight hundred twenty-seven trillion, two hundred fifty-seven billion, nine hundred thirty-nine million, one hundred seventy-seven thousand, nine hundred twenty-one.

### Scientific notation

• Scientific notation: 6.42827257939177921 × 1017

### Factors of 642827257939177921

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 929

### Divisors of 642827257939177921

• Number of divisors d(n): 7
• Complete list of divisors:
• Sum of all divisors σ(n): 643519959725750311
• Sum of proper divisors (its aliquot sum) s(n): 692701786572390
• 642827257939177921 is a deficient number, because the sum of its proper divisors (692701786572390) is less than itself. Its deficiency is 642134556152605531

### Bases of 642827257939177921

• Binary: 1000111010111100011111111100001110010110011100110001110000012
• Base-36: 4VTJ8THH14G1

### Squares and roots of 642827257939177921

• 642827257939177921 squared (6428272579391779212) is 413226883549602383464840561293882241
• 642827257939177921 cubed (6428272579391779213) is 265633504458942888996790280838040426815504330121200961
• 642827257939177921 is a perfect square number. Its square root is 801765089
• 642827257939177921 is a perfect cube number. Its cube root is 863041
• Being both a perfect square and a perfect cube, 642827257939177921 is also a perfect sixth number.

### Scales and comparisons

How big is 642827257939177921?
• 642,827,257,939,177,921 seconds is equal to 20,439,918,407 years, 10 weeks, 3 days, 23 hours, 12 minutes, 1 second.
• To count from 1 to 642,827,257,939,177,921 would take you about sixty-one billion, three hundred nineteen million, seven hundred fifty-five thousand, two hundred twenty-one years!

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 642827257939177921 cubic inches would be around 71920.1 feet tall.

### Recreational maths with 642827257939177921

• 642827257939177921 backwards is 129771939752728246
• The number of decimal digits it has is: 18
• The sum of 642827257939177921's digits is 91
• More coming soon!

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The information we have on file for 642827257939177921 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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