21478315920
21,478,315,920 is an even composite number composed of six prime numbers multiplied together.
21478315920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21478315920:
24 × 3 × 5 × 192 × 157 × 1579
(2 × 2 × 2 × 2 × 3 × 5 × 19 × 19 × 157 × 1579)See below for interesting mathematical facts about the number 21478315920 from the Numbermatics database.
Names of 21478315920
- Cardinal: 21478315920 can be written as Twenty-one billion, four hundred seventy-eight million, three hundred fifteen thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.147831592 × 1010
Factors of 21478315920
Divisors of 21478315920
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 38 40 48 57 60 76 80 95 114 120 152 157 190 228 240 285 304 314 361 380 456 471 570 628 722 760 785 912 942 1083 1140 1256 1444 1520 1570 1579 1805 1884 2166 2280 2355 2512 2888 2983 3140 3158 3610 3768 4332 4560 4710 4737 5415 5776 5966 6280 6316 7220 7536 7895 8664 8949 9420 9474 10830 11932 12560 12632 14440 14915 15790 17328 17898 18840 18948 21660 23685 23864 25264 28880 29830 30001 31580 35796 37680 37896 43320 44745 47370 47728 56677 59660 60002 63160 71592 75792 86640 89490 90003 94740 113354 119320 120004 126320 143184 150005 170031 178980 180006 189480 226708 238640 240008 247903 283385 300010 340062 357960 360012 378960 450015 453416 480016 495806 566770 570019 600020 680124 715920 720024 743709 850155 900030 906832 991612 1133540 1140038 1200040 1239515 1360248 1440048 1487418 1700310 1710057 1800060 1983224 2267080 2280076 2400080 2479030 2720496 2850095 2974836 3400620 3420114 3600120 3718545 3966448 4534160 4560152 4710157 4958060 5700190 5949672 6801240 6840228 7200240 7437090 8550285 9120304 9420314 9916120 11400380 11899344 13602480 13680456 14130471 14874180 17100570 18840628 19832240 22800760 23550785 27360912 28260942 29748360 34201140 37681256 45601520 47101570 56521884 59496720 68402280 70652355 75362512 89492983 94203140 113043768 136804560 141304710 178985966 188406280 226087536 268478949 282609420 357971932 376812560 447464915 536957898 565218840 715943864 894929830 1073915796 1130437680 1342394745 1431887728 1789859660 2147831592 2684789490 3579719320 4295663184 5369578980 7159438640 10739157960 21478315920
- Sum of all divisors σ(n): 70763952960
- Sum of proper divisors (its aliquot sum) s(n): 49285637040
- 21478315920 is an abundant number, because the sum of its proper divisors (49285637040) is greater than itself. Its abundance is 27807321120
Bases of 21478315920
- Binary: 101000000000011010100010111100100002
- Hexadecimal: 0x500351790
- Base-36: 9V7MUMO
Squares and roots of 21478315920
- 21478315920 squared (214783159202) is 461318054759325446400
- 21478315920 cubed (214783159203) is 9908334919720651503874226688000
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The
square root of 21478315920 is 146554.8222338657 -
The
cube root of 21478315920 is 2779.7137500065
Scales and comparisons
How big is 21478315920?- 21,478,315,920 seconds is equal to 682 years, 49 weeks, 14 hours, 52 minutes.
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To count from 1 to 21,478,315,920 would take you about one thousand, three hundred sixty-five 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 21478315920 cubic inches would be around 231.6 feet tall.
Recreational maths with 21478315920
- 21478315920 backwards is 02951387412
- The number of decimal digits it has is: 11
- The sum of 21478315920's digits is 42
- More coming soon!
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"Number 21478315920 - Facts about the integer". Numbermatics.com. 2024. Web. 6 June 2024.
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Numbermatics. (2024). Number 21478315920 - Facts about the integer. Retrieved 6 June 2024, from https://numbermatics.com/n/21478315920/
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