21125121024
21,125,121,024 is an even composite number composed of four prime numbers multiplied together.
21125121024 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-eight divisors.
Prime factorization of 21125121024:
210 × 3 × 7 × 982381
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 982381)See below for interesting mathematical facts about the number 21125121024 from the Numbermatics database.
Names of 21125121024
- Cardinal: 21125121024 can be written as Twenty-one billion, one hundred twenty-five million, one hundred twenty-one thousand and twenty-four.
Scientific notation
- Scientific notation: 2.1125121024 × 1010
Factors of 21125121024
Divisors of 21125121024
- Number of divisors d(n): 88
-
Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 512 672 768 896 1024 1344 1536 1792 2688 3072 3584 5376 7168 10752 21504 982381 1964762 2947143 3929524 5894286 6876667 7859048 11788572 13753334 15718096 20630001 23577144 27506668 31436192 41260002 47154288 55013336 62872384 82520004 94308576 110026672 125744768 165040008 188617152 220053344 251489536 330080016 377234304 440106688 502979072 660160032 754468608 880213376 1005958144 1320320064 1508937216 1760426752 2640640128 3017874432 3520853504 5281280256 7041707008 10562560512 21125121024
- Sum of all divisors σ(n): 64349950528
- Sum of proper divisors (its aliquot sum) s(n): 43224829504
- 21125121024 is an abundant number, because the sum of its proper divisors (43224829504) is greater than itself. Its abundance is 22099708480
Bases of 21125121024
- Binary: 100111010110010011111000100000000002
- Hexadecimal: 0x4EB27C400
- Base-36: 9PDCNPC
Squares and roots of 21125121024
- 21125121024 squared (211251210242) is 446270738278646808576
- 21125121024 cubed (211251210243) is 9427523355606243266119361101824
-
The
square root of 21125121024 is 145344.8348721069 -
The
cube root of 21125121024 is 2764.3926858387
Scales and comparisons
How big is 21125121024?- 21,125,121,024 seconds is equal to 671 years, 37 weeks, 17 hours, 10 minutes, 24 seconds.
-
To count from 1 to 21,125,121,024 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 21125121024 cubic inches would be around 230.4 feet tall.
Recreational maths with 21125121024
- 21125121024 backwards is 42012152112
- 21125121024 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21125121024's digits is 21
- More coming soon!
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