21017027840
21,017,027,840 is an even composite number composed of six prime numbers multiplied together.
What does the number 21017027840 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 288 divisors.
21017027840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21017027840:
28 × 5 × 19 × 31 × 61 × 457
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 19 × 31 × 61 × 457)See below for interesting mathematical facts about the number 21017027840 from the Numbermatics database.
Names of 21017027840
- Cardinal: 21017027840 can be written as Twenty-one billion, seventeen million, twenty-seven thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.101702784 × 1010
Factors of 21017027840
Divisors of 21017027840
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 31 32 38 40 61 62 64 76 80 95 122 124 128 152 155 160 190 244 248 256 304 305 310 320 380 457 488 496 589 608 610 620 640 760 914 976 992 1159 1178 1216 1220 1240 1280 1520 1828 1891 1952 1984 2285 2318 2356 2432 2440 2480 2945 3040 3656 3782 3904 3968 4570 4636 4712 4864 4880 4960 5795 5890 6080 7312 7564 7808 7936 8683 9140 9272 9424 9455 9760 9920 11590 11780 12160 14167 14624 15128 15616 17366 18280 18544 18848 18910 19520 19840 23180 23560 24320 27877 28334 29248 30256 34732 35929 36560 37088 37696 37820 39040 39680 43415 46360 47120 55754 56668 58496 60512 69464 70835 71858 73120 74176 75392 75640 78080 86830 92720 94240 111508 113336 116992 121024 138928 139385 141670 143716 146240 148352 150784 151280 173660 179645 185440 188480 223016 226672 242048 269173 277856 278770 283340 287432 292480 296704 302560 347320 359290 370880 376960 446032 453344 484096 529663 538346 555712 557540 566680 574864 584960 605120 694640 718580 741760 753920 864187 892064 906688 1059326 1076692 1111424 1115080 1133360 1149728 1210240 1345865 1389280 1437160 1483520 1728374 1784128 1813376 2118652 2153384 2222848 2230160 2266720 2299456 2420480 2648315 2691730 2778560 2874320 3456748 3568256 3626752 4237304 4306768 4320935 4460320 4533440 4598912 5296630 5383460 5557120 5748640 6913496 7136512 8474608 8613536 8641870 8920640 9066880 9197824 10593260 10766920 11114240 11497280 13826992 16419553 16949216 17227072 17283740 17841280 18133760 21186520 21533840 22994560 27653984 32839106 33898432 34454144 34567480 35682560 42373040 43067680 45989120 55307968 65678212 67796864 68908288 69134960 82097765 84746080 86135360 110615936 131356424 135593728 138269920 164195530 169492160 172270720 221231872 262712848 276539840 328391060 338984320 344541440 525425696 553079680 656782120 677968640 1050851392 1106159360 1313564240 2101702784 2627128480 4203405568 5254256960 10508513920 21017027840
- Sum of all divisors σ(n): 55719767040
- Sum of proper divisors (its aliquot sum) s(n): 34702739200
- 21017027840 is an abundant number, because the sum of its proper divisors (34702739200) is greater than itself. Its abundance is 13685711360
Bases of 21017027840
- Binary: 100111001001011011001100101000000002
- Hexadecimal: 0x4E4B66500
- Base-36: 9NKZUGW
Squares and roots of 21017027840
- 21017027840 squared (210170278402) is 441715459227335065600
- 21017027840 cubed (210170278403) is 9283546103939285962723426304000
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The
square root of 21017027840 is 144972.5071867077 -
The
cube root of 21017027840 is 2759.6696657091
Scales and comparisons
How big is 21017027840?- 21,017,027,840 seconds is equal to 668 years, 14 weeks, 2 days, 15 hours, 17 minutes, 20 seconds.
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To count from 1 to 21,017,027,840 would take you about one thousand, three hundred thirty-six years!
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 21017027840 cubic inches would be around 230 feet tall.
Recreational maths with 21017027840
- 21017027840 backwards is 04872071012
- 21017027840 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21017027840's digits is 32
- More coming soon!
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