400137921

400,137,921 is an odd composite number composed of two prime numbers multiplied together.

What does the number 400137921 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

400137921 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 400137921:

3³ × 14819923

(3 × 3 × 3 × 14819923)

See below for interesting mathematical facts about the number 400137921 from the Numbermatics database.

Names of 400137921

Cardinal: 400137921 can be written as Four hundred million, one hundred thirty-seven thousand, nine hundred twenty-one.

Scientific notation

Scientific notation: 4.00137921 × 10⁸

Factors of 400137921

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 4
Sum of prime factors: 14819926

Divisors of 400137921

Number of divisors d(n): 8
Complete list of divisors:
1 3 9 27 14819923 44459769 133379307 400137921
Sum of all divisors σ(n): 592796960
Sum of proper divisors (its aliquot sum) s(n): 192659039
400137921 is a deficient number, because the sum of its proper divisors (192659039) is less than itself. Its deficiency is 207478882

Bases of 400137921

Binary: 10111110110011001111011000001₂
Hexadecimal: 0x17D99EC1
Base-36: 6M8CE9

Squares and roots of 400137921

400137921 squared (400137921²) is 160110355822202241
400137921 cubed (400137921³) is 64066224909266250355280961
The square root of 400137921 is 20003.4477278297
The cube root of 400137921 is 736.8909742149

Scales and comparisons

How big is 400137921?

400,137,921 seconds is equal to 12 years, 37 weeks, 4 days, 5 hours, 25 minutes, 21 seconds.
To count from 1 to 400,137,921 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 400137921 cubic inches would be around 61.4 feet tall.

Recreational maths with 400137921

400137921 backwards is 129731004
400137921 is a Harshad number.
The number of decimal digits it has is: 9
The sum of 400137921's digits is 27
More coming soon!

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The information we have on file for 400137921 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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