400390625

400,390,625 is an odd composite number composed of two prime numbers multiplied together.

What does the number 400390625 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 22 divisors.

400390625 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of twenty-two divisors.

Prime factorization of 400390625:

5¹⁰ × 41

(5 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 41)

See below for interesting mathematical facts about the number 400390625 from the Numbermatics database.

Names of 400390625

Cardinal: 400390625 can be written as Four hundred million, three hundred ninety thousand, six hundred twenty-five.

Scientific notation

Scientific notation: 4.00390625 × 10⁸

Factors of 400390625

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 11
Sum of prime factors: 46

Divisors of 400390625

Number of divisors d(n): 22
Complete list of divisors:
1 5 25 41 125 205 625 1025 3125 5125 15625 25625 78125 128125 390625 640625 1953125 3203125 9765625 16015625 80078125 400390625
Sum of all divisors σ(n): 512695302
Sum of proper divisors (its aliquot sum) s(n): 112304677
400390625 is a deficient number, because the sum of its proper divisors (112304677) is less than itself. Its deficiency is 288085948

Bases of 400390625

Binary: 10111110111010111100111100001₂
Hexadecimal: 0x17DD79E1
Base-36: 6MDRDT

Squares and roots of 400390625

400390625 squared (400390625²) is 160312652587890625
400390625 cubed (400390625³) is 64187683165073394775390625
The square root of 400390625 is 20009.7632419777
The cube root of 400390625 is 737.0460674963

Scales and comparisons

How big is 400390625?

400,390,625 seconds is equal to 12 years, 38 weeks, 3 hours, 37 minutes, 5 seconds.
To count from 1 to 400,390,625 would take you about nineteen 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 400390625 cubic inches would be around 61.4 feet tall.

Recreational maths with 400390625

400390625 backwards is 526093004
The number of decimal digits it has is: 9
The sum of 400390625's digits is 29
More coming soon!

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The information we have on file for 400390625 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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