388420857

388,420,857 is an odd composite number composed of five prime numbers multiplied together.

What does the number 388420857 look like?

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

388420857 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 388420857:

3² × 11 × 19 × 37 × 5581

(3 × 3 × 11 × 19 × 37 × 5581)

See below for interesting mathematical facts about the number 388420857 from the Numbermatics database.

Names of 388420857

Cardinal: 388420857 can be written as Three hundred eighty-eight million, four hundred twenty thousand, eight hundred fifty-seven.

Scientific notation

Scientific notation: 3.88420857 × 10⁸

Factors of 388420857

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 5651

Divisors of 388420857

Number of divisors d(n): 48
Complete list of divisors:
1 3 9 11 19 33 37 57 99 111 171 209 333 407 627 703 1221 1881 2109 3663 5581 6327 7733 16743 23199 50229 61391 69597 106039 184173 206497 318117 552519 619491 954351 1166429 1858473 2271467 3499287 3923443 6814401 10497861 11770329 20443203 35310987 43157873 129473619 388420857
Sum of all divisors σ(n): 661801920
Sum of proper divisors (its aliquot sum) s(n): 273381063
388420857 is a deficient number, because the sum of its proper divisors (273381063) is less than itself. Its deficiency is 115039794

Bases of 388420857

Binary: 10111001001101101010011111001₂
Hexadecimal: 0x1726D4F9
Base-36: 6F97G9

Squares and roots of 388420857

388420857 squared (388420857²) is 150870762152614449
388420857 cubed (388420857³) is 58601350731561669071162793
The square root of 388420857 is 19708.3955968009
The cube root of 388420857 is 729.6269170101

Scales and comparisons

How big is 388420857?

388,420,857 seconds is equal to 12 years, 18 weeks, 1 day, 14 hours, 40 minutes, 57 seconds.
To count from 1 to 388,420,857 would take you about eighteen 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 388420857 cubic inches would be around 60.8 feet tall.

Recreational maths with 388420857

388420857 backwards is 758024883
The number of decimal digits it has is: 9
The sum of 388420857's digits is 45
More coming soon!

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The information we have on file for 388420857 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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