21206250
21,206,250 is an even composite number composed of five prime numbers multiplied together.
21206250 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21206250:
2 × 32 × 55 × 13 × 29
(2 × 3 × 3 × 5 × 5 × 5 × 5 × 5 × 13 × 29)See below for interesting mathematical facts about the number 21206250 from the Numbermatics database.
Names of 21206250
- Cardinal: 21206250 can be written as Twenty-one million, two hundred six thousand, two hundred fifty.
Scientific notation
- Scientific notation: 2.120625 × 107
Factors of 21206250
Divisors of 21206250
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 25 26 29 30 39 45 50 58 65 75 78 87 90 117 125 130 145 150 174 195 225 234 250 261 290 325 375 377 390 435 450 522 585 625 650 725 750 754 870 975 1125 1131 1170 1250 1305 1450 1625 1875 1885 1950 2175 2250 2262 2610 2925 3125 3250 3393 3625 3750 3770 4350 4875 5625 5655 5850 6250 6525 6786 7250 8125 9375 9425 9750 10875 11250 11310 13050 14625 16250 16965 18125 18750 18850 21750 24375 28125 28275 29250 32625 33930 36250 40625 47125 48750 54375 56250 56550 65250 73125 81250 84825 90625 94250 108750 121875 141375 146250 163125 169650 181250 235625 243750 271875 282750 326250 365625 424125 471250 543750 706875 731250 815625 848250 1178125 1413750 1631250 2120625 2356250 3534375 4241250 7068750 10603125 21206250
- Sum of all divisors σ(n): 63980280
- Sum of proper divisors (its aliquot sum) s(n): 42774030
- 21206250 is an abundant number, because the sum of its proper divisors (42774030) is greater than itself. Its abundance is 21567780
Bases of 21206250
- Binary: 10100001110010100111010102
- Hexadecimal: 0x14394EA
- Base-36: CMIUI
Squares and roots of 21206250
- 21206250 squared (212062502) is 449705039062500
- 21206250 cubed (212062503) is 9536557484619140625000
-
The
square root of 21206250 is 4605.0244299025 -
The
cube root of 21206250 is 276.7926959241
Scales and comparisons
How big is 21206250?- 21,206,250 seconds is equal to 35 weeks, 10 hours, 37 minutes, 30 seconds.
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To count from 1 to 21,206,250 would take you about four 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 21206250 cubic inches would be around 23.1 feet tall.
Recreational maths with 21206250
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The information we have on file for 21206250 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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