21129948
21,129,948 is an even composite number composed of five prime numbers multiplied together.
What does the number 21129948 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 72 divisors.
21129948 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21129948:
22 × 32 × 7 × 191 × 439
(2 × 2 × 3 × 3 × 7 × 191 × 439)See below for interesting mathematical facts about the number 21129948 from the Numbermatics database.
Names of 21129948
- Cardinal: 21129948 can be written as Twenty-one million, one hundred twenty-nine thousand, nine hundred forty-eight.
Scientific notation
- Scientific notation: 2.1129948 × 107
Factors of 21129948
Divisors of 21129948
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 191 252 382 439 573 764 878 1146 1317 1337 1719 1756 2292 2634 2674 3073 3438 3951 4011 5268 5348 6146 6876 7902 8022 9219 12033 12292 15804 16044 18438 24066 27657 36876 48132 55314 83849 110628 167698 251547 335396 503094 586943 754641 1006188 1173886 1509282 1760829 2347772 3018564 3521658 5282487 7043316 10564974 21129948
- Sum of all divisors σ(n): 61501440
- Sum of proper divisors (its aliquot sum) s(n): 40371492
- 21129948 is an abundant number, because the sum of its proper divisors (40371492) is greater than itself. Its abundance is 19241544
Bases of 21129948
- Binary: 10100001001101010110111002
- Hexadecimal: 0x1426ADC
- Base-36: CKVZ0
Squares and roots of 21129948
- 21129948 squared (211299482) is 446474702482704
- 21129948 cubed (211299483) is 9433987246775006419392
-
The
square root of 21129948 is 4596.7323176361 -
The
cube root of 21129948 is 276.4603219399
Scales and comparisons
How big is 21129948?- 21,129,948 seconds is equal to 34 weeks, 6 days, 13 hours, 25 minutes, 48 seconds.
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To count from 1 to 21,129,948 would take you about two days!
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 21129948 cubic inches would be around 23 feet tall.
Recreational maths with 21129948
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The information we have on file for 21129948 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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