21355290
21,355,290 is an even composite number composed of six prime numbers multiplied together.
21355290 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21355290:
2 × 32 × 5 × 112 × 37 × 53
(2 × 3 × 3 × 5 × 11 × 11 × 37 × 53)See below for interesting mathematical facts about the number 21355290 from the Numbermatics database.
Names of 21355290
- Cardinal: 21355290 can be written as Twenty-one million, three hundred fifty-five thousand, two hundred ninety.
Scientific notation
- Scientific notation: 2.135529 × 107
Factors of 21355290
Divisors of 21355290
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 9 10 11 15 18 22 30 33 37 45 53 55 66 74 90 99 106 110 111 121 159 165 185 198 222 242 265 318 330 333 363 370 407 477 495 530 555 583 605 666 726 795 814 954 990 1089 1110 1166 1210 1221 1590 1665 1749 1815 1961 2035 2178 2385 2442 2915 3330 3498 3630 3663 3922 4070 4477 4770 5247 5445 5830 5883 6105 6413 7326 8745 8954 9805 10494 10890 11766 12210 12826 13431 17490 17649 18315 19239 19610 21571 22385 26235 26862 29415 32065 35298 36630 38478 40293 43142 44770 52470 57717 58830 64130 64713 67155 80586 88245 96195 107855 115434 129426 134310 176490 192390 194139 201465 215710 237281 288585 323565 388278 402930 474562 577170 647130 711843 970695 1186405 1423686 1941390 2135529 2372810 3559215 4271058 7118430 10677645 21355290
- Sum of all divisors σ(n): 63862344
- Sum of proper divisors (its aliquot sum) s(n): 42507054
- 21355290 is an abundant number, because the sum of its proper divisors (42507054) is greater than itself. Its abundance is 21151764
Bases of 21355290
- Binary: 10100010111011011000110102
- Hexadecimal: 0x145DB1A
- Base-36: CPPUI
Squares and roots of 21355290
- 21355290 squared (213552902) is 456048410984100
- 21355290 cubed (213552903) is 9739046070604640889000
-
The
square root of 21355290 is 4621.1784211389 -
The
cube root of 21355290 is 277.4396265057
Scales and comparisons
How big is 21355290?- 21,355,290 seconds is equal to 35 weeks, 2 days, 4 hours, 1 minute, 30 seconds.
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To count from 1 to 21,355,290 would take you about six 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 21355290 cubic inches would be around 23.1 feet tall.
Recreational maths with 21355290
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The information we have on file for 21355290 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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