21320806400
21,320,806,400 is an even composite number composed of four prime numbers multiplied together.
21320806400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred fifty-six divisors.
Prime factorization of 21320806400:
212 × 52 × 59 × 3529
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 59 × 3529)See below for interesting mathematical facts about the number 21320806400 from the Numbermatics database.
Names of 21320806400
- Cardinal: 21320806400 can be written as Twenty-one billion, three hundred twenty million, eight hundred six thousand, four hundred.
Scientific notation
- Scientific notation: 2.13208064 × 1010
Factors of 21320806400
Divisors of 21320806400
- Number of divisors d(n): 156
-
Complete list of divisors:
1 2 4 5 8 10 16 20 25 32 40 50 59 64 80 100 118 128 160 200 236 256 295 320 400 472 512 590 640 800 944 1024 1180 1280 1475 1600 1888 2048 2360 2560 2950 3200 3529 3776 4096 4720 5120 5900 6400 7058 7552 9440 10240 11800 12800 14116 15104 17645 18880 20480 23600 25600 28232 30208 35290 37760 47200 51200 56464 60416 70580 75520 88225 94400 102400 112928 120832 141160 151040 176450 188800 208211 225856 241664 282320 302080 352900 377600 416422 451712 564640 604160 705800 755200 832844 903424 1041055 1129280 1208320 1411600 1510400 1665688 1806848 2082110 2258560 2823200 3020800 3331376 3613696 4164220 4517120 5205275 5646400 6041600 6662752 7227392 8328440 9034240 10410550 11292800 13325504 14454784 16656880 18068480 20821100 22585600 26651008 33313760 36136960 41642200 45171200 53302016 66627520 72273920 83284400 90342400 106604032 133255040 166568800 180684800 213208064 266510080 333137600 361369600 426416128 533020160 666275200 852832256 1066040320 1332550400 2132080640 2665100800 4264161280 5330201600 10660403200 21320806400
- Sum of all divisors σ(n): 53780467800
- Sum of proper divisors (its aliquot sum) s(n): 32459661400
- 21320806400 is an abundant number, because the sum of its proper divisors (32459661400) is greater than itself. Its abundance is 11138855000
Bases of 21320806400
- Binary: 100111101101101000110110000000000002
- Hexadecimal: 0x4F6D1B000
- Base-36: 9SLUVI8
Squares and roots of 21320806400
- 21320806400 squared (213208064002) is 454576785546280960000
- 21320806400 cubed (213208064003) is 9691943638566574588166144000000
-
The
square root of 21320806400 is 146016.4593461983 -
The
cube root of 21320806400 is 2772.9021354591
Scales and comparisons
How big is 21320806400?- 21,320,806,400 seconds is equal to 677 years, 48 weeks, 4 days, 14 hours, 13 minutes, 20 seconds.
-
To count from 1 to 21,320,806,400 would take you about one thousand, three hundred fifty-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 21320806400 cubic inches would be around 231.1 feet tall.
Recreational maths with 21320806400
- 21320806400 backwards is 00460802312
- The number of decimal digits it has is: 11
- The sum of 21320806400's digits is 26
- More coming soon!
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