138697428

138,697,428 is an even composite number composed of four prime numbers multiplied together.

What does the number 138697428 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

138697428 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 138697428:

2² × 3 × 199 × 241²

(2 × 2 × 3 × 199 × 241 × 241)

See below for interesting mathematical facts about the number 138697428 from the Numbermatics database.

Names of 138697428

Cardinal: 138697428 can be written as One hundred thirty-eight million, six hundred ninety-seven thousand, four hundred twenty-eight.

Scientific notation

Scientific notation: 1.38697428 × 10⁸

Factors of 138697428

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 445

Divisors of 138697428

Number of divisors d(n): 36
Complete list of divisors:
1 2 3 4 6 12 199 241 398 482 597 723 796 964 1194 1446 2388 2892 47959 58081 95918 116162 143877 174243 191836 232324 287754 348486 575508 696972 11558119 23116238 34674357 46232476 69348714 138697428
Sum of all divisors σ(n): 326608800
Sum of proper divisors (its aliquot sum) s(n): 187911372
138697428 is an abundant number, because the sum of its proper divisors (187911372) is greater than itself. Its abundance is 49213944

Bases of 138697428

Binary: 1000010001000101101011010100₂
Hexadecimal: 0x8445AD4
Base-36: 2AKRMC

Squares and roots of 138697428

138697428 squared (138697428²) is 19236976533815184
138697428 cubed (138697428³) is 2668119167736521048146752
The square root of 138697428 is 11776.9872208473
The cube root of 138697428 is 517.6340094963

Scales and comparisons

How big is 138697428?

138,697,428 seconds is equal to 4 years, 21 weeks, 2 days, 7 hours, 3 minutes, 48 seconds.
To count from 1 to 138,697,428 would take you about six 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 138697428 cubic inches would be around 43.1 feet tall.

Recreational maths with 138697428

138697428 backwards is 824796831
The number of decimal digits it has is: 9
The sum of 138697428's digits is 48
More coming soon!

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The information we have on file for 138697428 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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