21021232512
21,021,232,512 is an even composite number composed of four prime numbers multiplied together.
21021232512 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 21021232512:
27 × 3 × 7 × 7820399
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 7820399)See below for interesting mathematical facts about the number 21021232512 from the Numbermatics database.
Names of 21021232512
- Cardinal: 21021232512 can be written as Twenty-one billion, twenty-one million, two hundred thirty-two thousand, five hundred twelve.
Scientific notation
- Scientific notation: 2.1021232512 × 1010
Factors of 21021232512
Divisors of 21021232512
- Number of divisors d(n): 64
-
Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 336 384 448 672 896 1344 2688 7820399 15640798 23461197 31281596 46922394 54742793 62563192 93844788 109485586 125126384 164228379 187689576 218971172 250252768 328456758 375379152 437942344 500505536 656913516 750758304 875884688 1001011072 1313827032 1501516608 1751769376 2627654064 3003033216 3503538752 5255308128 7007077504 10510616256 21021232512
- Sum of all divisors σ(n): 63814464000
- Sum of proper divisors (its aliquot sum) s(n): 42793231488
- 21021232512 is an abundant number, because the sum of its proper divisors (42793231488) is greater than itself. Its abundance is 21771998976
Bases of 21021232512
- Binary: 100111001001111011010001101100000002
- Hexadecimal: 0x4E4F68D80
- Base-36: 9NNHYTC
Squares and roots of 21021232512
- 21021232512 squared (210212325122) is 441892216323565830144
- 21021232512 cubed (210212325123) is 9289119024580679140395322441728
-
The
square root of 21021232512 is 144987.0080800345 -
The
cube root of 21021232512 is 2759.8536868457
Scales and comparisons
How big is 21021232512?- 21,021,232,512 seconds is equal to 668 years, 21 weeks, 2 days, 7 hours, 15 minutes, 12 seconds.
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To count from 1 to 21,021,232,512 would take you about one thousand, three hundred thirty-six 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 21021232512 cubic inches would be around 230 feet tall.
Recreational maths with 21021232512
- 21021232512 backwards is 21523212012
- 21021232512 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21021232512's digits is 21
- More coming soon!
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