20918615040
20,918,615,040 is an even composite number composed of four prime numbers multiplied together.
20918615040 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred sixty-four divisors.
Prime factorization of 20918615040:
210 × 33 × 5 × 3892
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 389 × 389)See below for interesting mathematical facts about the number 20918615040 from the Numbermatics database.
Names of 20918615040
- Cardinal: 20918615040 can be written as Twenty billion, nine hundred eighteen million, six hundred fifteen thousand and forty.
Scientific notation
- Scientific notation: 2.091861504 × 1010
Factors of 20918615040
Divisors of 20918615040
- Number of divisors d(n): 264
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 256 270 288 320 360 384 389 432 480 512 540 576 640 720 768 778 864 960 1024 1080 1152 1167 1280 1440 1536 1556 1728 1920 1945 2160 2304 2334 2560 2880 3072 3112 3456 3501 3840 3890 4320 4608 4668 5120 5760 5835 6224 6912 7002 7680 7780 8640 9216 9336 10503 11520 11670 12448 13824 14004 15360 15560 17280 17505 18672 21006 23040 23340 24896 27648 28008 31120 34560 35010 37344 42012 46080 46680 49792 52515 56016 62240 69120 70020 74688 84024 93360 99584 105030 112032 124480 138240 140040 149376 151321 168048 186720 199168 210060 224064 248960 280080 298752 302642 336096 373440 398336 420120 448128 453963 497920 560160 597504 605284 672192 746880 756605 840240 896256 907926 995840 1120320 1195008 1210568 1344384 1361889 1493760 1513210 1680480 1792512 1815852 1991680 2240640 2269815 2421136 2688768 2723778 2987520 3026420 3360960 3585024 3631704 4085667 4481280 4539630 4842272 5377536 5447556 5975040 6052840 6721920 6809445 7263408 8171334 8962560 9079260 9684544 10755072 10895112 12105680 13443840 13618890 14526816 16342668 17925120 18158520 19369088 20428335 21790224 24211360 26887680 27237780 29053632 32685336 36317040 38738176 40856670 43580448 48422720 53775360 54475560 58107264 65370672 72634080 77476352 81713340 87160896 96845440 108951120 116214528 130741344 145268160 154952704 163426680 174321792 193690880 217902240 232429056 261482688 290536320 326853360 348643584 387381760 435804480 464858112 522965376 581072640 653706720 697287168 774763520 871608960 1045930752 1162145280 1307413440 1394574336 1743217920 2091861504 2324290560 2614826880 3486435840 4183723008 5229653760 6972871680 10459307520 20918615040
- Sum of all divisors σ(n): 74532580080
- Sum of proper divisors (its aliquot sum) s(n): 53613965040
- 20918615040 is an abundant number, because the sum of its proper divisors (53613965040) is greater than itself. Its abundance is 32695350000
Bases of 20918615040
- Binary: 100110111101101100010111100000000002
- Hexadecimal: 0x4DED8BC00
- Base-36: 9LYEIO0
Squares and roots of 20918615040
- 20918615040 squared (209186150402) is 437588455191714201600
- 20918615040 cubed (209186150403) is 9153744440103758780971352064000
-
The
square root of 20918615040 is 144632.6900807699 -
The
cube root of 20918615040 is 2755.3555157517
Scales and comparisons
How big is 20918615040?- 20,918,615,040 seconds is equal to 665 years, 7 weeks, 4 days, 14 hours, 24 minutes.
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To count from 1 to 20,918,615,040 would take you about one thousand, three hundred thirty 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 20918615040 cubic inches would be around 229.6 feet tall.
Recreational maths with 20918615040
- 20918615040 backwards is 04051681902
- 20918615040 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 20918615040's digits is 36
- More coming soon!
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