21426860
21,426,860 is an even composite number composed of six prime numbers multiplied together.
21426860 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21426860:
22 × 5 × 7 × 13 × 61 × 193
(2 × 2 × 5 × 7 × 13 × 61 × 193)See below for interesting mathematical facts about the number 21426860 from the Numbermatics database.
Names of 21426860
- Cardinal: 21426860 can be written as Twenty-one million, four hundred twenty-six thousand, eight hundred sixty.
Scientific notation
- Scientific notation: 2.142686 × 107
Factors of 21426860
Divisors of 21426860
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 10 13 14 20 26 28 35 52 61 65 70 91 122 130 140 182 193 244 260 305 364 386 427 455 610 772 793 854 910 965 1220 1351 1586 1708 1820 1930 2135 2509 2702 3172 3860 3965 4270 5018 5404 5551 6755 7930 8540 10036 11102 11773 12545 13510 15860 17563 22204 23546 25090 27020 27755 35126 47092 50180 55510 58865 70252 82411 87815 111020 117730 153049 164822 175630 235460 306098 329644 351260 412055 612196 765245 824110 1071343 1530490 1648220 2142686 3060980 4285372 5356715 10713430 21426860
- Sum of all divisors σ(n): 56579712
- Sum of proper divisors (its aliquot sum) s(n): 35152852
- 21426860 is an abundant number, because the sum of its proper divisors (35152852) is greater than itself. Its abundance is 13725992
Bases of 21426860
- Binary: 10100011011110010101011002
- Hexadecimal: 0x146F2AC
- Base-36: CR92K
Squares and roots of 21426860
- 21426860 squared (214268602) is 459110329459600
- 21426860 cubed (214268603) is 9837292753884724856000
-
The
square root of 21426860 is 4628.9156397585 -
The
cube root of 21426860 is 277.7492174487
Scales and comparisons
How big is 21426860?- 21,426,860 seconds is equal to 35 weeks, 2 days, 23 hours, 54 minutes, 20 seconds.
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To count from 1 to 21,426,860 would take you about twenty-three 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 21426860 cubic inches would be around 23.1 feet tall.
Recreational maths with 21426860
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The information we have on file for 21426860 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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