21372400
21,372,400 is an even composite number composed of five prime numbers multiplied together.
21372400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21372400:
24 × 52 × 7 × 17 × 449
(2 × 2 × 2 × 2 × 5 × 5 × 7 × 17 × 449)See below for interesting mathematical facts about the number 21372400 from the Numbermatics database.
Names of 21372400
- Cardinal: 21372400 can be written as Twenty-one million, three hundred seventy-two thousand, four hundred.
Scientific notation
- Scientific notation: 2.13724 × 107
Factors of 21372400
Divisors of 21372400
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 17 20 25 28 34 35 40 50 56 68 70 80 85 100 112 119 136 140 170 175 200 238 272 280 340 350 400 425 449 476 560 595 680 700 850 898 952 1190 1360 1400 1700 1796 1904 2245 2380 2800 2975 3143 3400 3592 4490 4760 5950 6286 6800 7184 7633 8980 9520 11225 11900 12572 15266 15715 17960 22450 23800 25144 30532 31430 35920 38165 44900 47600 50288 53431 61064 62860 76330 78575 89800 106862 122128 125720 152660 157150 179600 190825 213724 251440 267155 305320 314300 381650 427448 534310 610640 628600 763300 854896 1068620 1257200 1335775 1526600 2137240 2671550 3053200 4274480 5343100 10686200 21372400
- Sum of all divisors σ(n): 62272800
- Sum of proper divisors (its aliquot sum) s(n): 40900400
- 21372400 is an abundant number, because the sum of its proper divisors (40900400) is greater than itself. Its abundance is 19528000
Bases of 21372400
- Binary: 10100011000011101111100002
- Hexadecimal: 0x1461DF0
- Base-36: CQ31S
Squares and roots of 21372400
- 21372400 squared (213724002) is 456779481760000
- 21372400 cubed (213724003) is 9762473795967424000000
-
The
square root of 21372400 is 4623.0293098789 -
The
cube root of 21372400 is 277.5137022155
Scales and comparisons
How big is 21372400?- 21,372,400 seconds is equal to 35 weeks, 2 days, 8 hours, 46 minutes, 40 seconds.
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To count from 1 to 21,372,400 would take you about ten minutes!
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 21372400 cubic inches would be around 23.1 feet tall.
Recreational maths with 21372400
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The information we have on file for 21372400 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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