21125321616
21,125,321,616 is an even composite number composed of five prime numbers multiplied together.
21125321616 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21125321616:
24 × 3 × 7 × 47 × 1337723
(2 × 2 × 2 × 2 × 3 × 7 × 47 × 1337723)See below for interesting mathematical facts about the number 21125321616 from the Numbermatics database.
Names of 21125321616
- Cardinal: 21125321616 can be written as Twenty-one billion, one hundred twenty-five million, three hundred twenty-one thousand, six hundred sixteen.
Scientific notation
- Scientific notation: 2.1125321616 × 1010
Factors of 21125321616
Divisors of 21125321616
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 42 47 48 56 84 94 112 141 168 188 282 329 336 376 564 658 752 987 1128 1316 1974 2256 2632 3948 5264 7896 15792 1337723 2675446 4013169 5350892 8026338 9364061 10701784 16052676 18728122 21403568 28092183 32105352 37456244 56184366 62872981 64210704 74912488 112368732 125745962 149824976 188618943 224737464 251491924 377237886 440110867 449474928 502983848 754475772 880221734 1005967696 1320332601 1508951544 1760443468 2640665202 3017903088 3520886936 5281330404 7041773872 10562660808 21125321616
- Sum of all divisors σ(n): 63697065984
- Sum of proper divisors (its aliquot sum) s(n): 42571744368
- 21125321616 is an abundant number, because the sum of its proper divisors (42571744368) is greater than itself. Its abundance is 21446422752
Bases of 21125321616
- Binary: 100111010110010101011010011100100002
- Hexadecimal: 0x4EB2AD390
- Base-36: 9PDGYHC
Squares and roots of 21125321616
- 21125321616 squared (211253216162) is 446279213379436851456
- 21125321616 cubed (211253216163) is 9427791913176093727970417872896
-
The
square root of 21125321616 is 145345.5249259501 -
The
cube root of 21125321616 is 2764.4014355055
Scales and comparisons
How big is 21125321616?- 21,125,321,616 seconds is equal to 671 years, 37 weeks, 3 days, 53 minutes, 36 seconds.
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To count from 1 to 21,125,321,616 would take you about one thousand, three hundred forty-three 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 21125321616 cubic inches would be around 230.4 feet tall.
Recreational maths with 21125321616
- 21125321616 backwards is 61612352112
- The number of decimal digits it has is: 11
- The sum of 21125321616's digits is 30
- More coming soon!
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