21042120
21,042,120 is an even composite number composed of six prime numbers multiplied together.
21042120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21042120:
23 × 3 × 5 × 11 × 19 × 839
(2 × 2 × 2 × 3 × 5 × 11 × 19 × 839)See below for interesting mathematical facts about the number 21042120 from the Numbermatics database.
Names of 21042120
- Cardinal: 21042120 can be written as Twenty-one million, forty-two thousand, one hundred twenty.
Scientific notation
- Scientific notation: 2.104212 × 107
Factors of 21042120
Divisors of 21042120
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 19 20 22 24 30 33 38 40 44 55 57 60 66 76 88 95 110 114 120 132 152 165 190 209 220 228 264 285 330 380 418 440 456 570 627 660 760 836 839 1045 1140 1254 1320 1672 1678 2090 2280 2508 2517 3135 3356 4180 4195 5016 5034 6270 6712 8360 8390 9229 10068 12540 12585 15941 16780 18458 20136 25080 25170 27687 31882 33560 36916 46145 47823 50340 55374 63764 73832 79705 92290 95646 100680 110748 127528 138435 159410 175351 184580 191292 221496 239115 276870 318820 350702 369160 382584 478230 526053 553740 637640 701404 876755 956460 1052106 1107480 1402808 1753510 1912920 2104212 2630265 3507020 4208424 5260530 7014040 10521060 21042120
- Sum of all divisors σ(n): 72576000
- Sum of proper divisors (its aliquot sum) s(n): 51533880
- 21042120 is an abundant number, because the sum of its proper divisors (51533880) is greater than itself. Its abundance is 30491760
Bases of 21042120
- Binary: 10100000100010011110010002
- Hexadecimal: 0x14113C8
- Base-36: CJ07C
Squares and roots of 21042120
- 21042120 squared (210421202) is 442770814094400
- 21042120 cubed (210421203) is 9316836602672056128000
-
The
square root of 21042120 is 4587.1690616325 -
The
cube root of 21042120 is 276.0767482427
Scales and comparisons
How big is 21042120?- 21,042,120 seconds is equal to 34 weeks, 5 days, 13 hours, 2 minutes.
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To count from 1 to 21,042,120 would take you about seven 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 21042120 cubic inches would be around 23 feet tall.
Recreational maths with 21042120
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The information we have on file for 21042120 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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