21418240
21,418,240 is an even composite number composed of four prime numbers multiplied together.
21418240 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21418240:
28 × 5 × 29 × 577
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 29 × 577)See below for interesting mathematical facts about the number 21418240 from the Numbermatics database.
Names of 21418240
- Cardinal: 21418240 can be written as Twenty-one million, four hundred eighteen thousand, two hundred forty.
Scientific notation
- Scientific notation: 2.141824 × 107
Factors of 21418240
Divisors of 21418240
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 128 145 160 232 256 290 320 464 577 580 640 928 1154 1160 1280 1856 2308 2320 2885 3712 4616 4640 5770 7424 9232 9280 11540 16733 18464 18560 23080 33466 36928 37120 46160 66932 73856 83665 92320 133864 147712 167330 184640 267728 334660 369280 535456 669320 738560 1070912 1338640 2141824 2677280 4283648 5354560 10709120 21418240
- Sum of all divisors σ(n): 53164440
- Sum of proper divisors (its aliquot sum) s(n): 31746200
- 21418240 is an abundant number, because the sum of its proper divisors (31746200) is greater than itself. Its abundance is 10327960
Bases of 21418240
- Binary: 10100011011010001000000002
- Hexadecimal: 0x146D100
- Base-36: CR2F4
Squares and roots of 21418240
- 21418240 squared (214182402) is 458741004697600
- 21418240 cubed (214182403) is 9825424936454324224000
-
The
square root of 21418240 is 4627.9844424977 -
The
cube root of 21418240 is 277.7119663943
Scales and comparisons
How big is 21418240?- 21,418,240 seconds is equal to 35 weeks, 2 days, 21 hours, 30 minutes, 40 seconds.
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To count from 1 to 21,418,240 would take you about twenty hours!
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 21418240 cubic inches would be around 23.1 feet tall.
Recreational maths with 21418240
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The information we have on file for 21418240 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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