21017040
21,017,040 is an even composite number composed of six prime numbers multiplied together.
21017040 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 21017040:
24 × 3 × 5 × 11 × 19 × 419
(2 × 2 × 2 × 2 × 3 × 5 × 11 × 19 × 419)See below for interesting mathematical facts about the number 21017040 from the Numbermatics database.
Names of 21017040
- Cardinal: 21017040 can be written as Twenty-one million, seventeen thousand and forty.
Scientific notation
- Scientific notation: 2.101704 × 107
Factors of 21017040
Divisors of 21017040
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 19 20 22 24 30 33 38 40 44 48 55 57 60 66 76 80 88 95 110 114 120 132 152 165 176 190 209 220 228 240 264 285 304 330 380 418 419 440 456 528 570 627 660 760 836 838 880 912 1045 1140 1254 1257 1320 1520 1672 1676 2090 2095 2280 2508 2514 2640 3135 3344 3352 4180 4190 4560 4609 5016 5028 6270 6285 6704 7961 8360 8380 9218 10032 10056 12540 12570 13827 15922 16720 16760 18436 20112 23045 23883 25080 25140 27654 31844 33520 36872 39805 46090 47766 50160 50280 55308 63688 69135 73744 79610 87571 92180 95532 100560 110616 119415 127376 138270 159220 175142 184360 191064 221232 238830 262713 276540 318440 350284 368720 382128 437855 477660 525426 553080 636880 700568 875710 955320 1050852 1106160 1313565 1401136 1751420 1910640 2101704 2627130 3502840 4203408 5254260 7005680 10508520 21017040
- Sum of all divisors σ(n): 74995200
- Sum of proper divisors (its aliquot sum) s(n): 53978160
- 21017040 is an abundant number, because the sum of its proper divisors (53978160) is greater than itself. Its abundance is 32961120
Bases of 21017040
- Binary: 10100000010110001110100002
- Hexadecimal: 0x140B1D0
- Base-36: CIGUO
Squares and roots of 21017040
- 21017040 squared (210170402) is 441715970361600
- 21017040 cubed (210170403) is 9283562217728561664000
-
The
square root of 21017040 is 4584.4345343785 -
The
cube root of 21017040 is 275.9670197937
Scales and comparisons
How big is 21017040?- 21,017,040 seconds is equal to 34 weeks, 5 days, 6 hours, 4 minutes.
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To count from 1 to 21,017,040 would take you about twenty-one 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 21017040 cubic inches would be around 23 feet tall.
Recreational maths with 21017040
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Keywords: Divisors of 21017040, math, Factors of 21017040, curriculum, school, college, exams, university, Prime factorization of 21017040, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, seventeen thousand and forty.