21356896
21,356,896 is an even composite number composed of five prime numbers multiplied together.
21356896 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21356896:
25 × 11 × 17 × 43 × 83
(2 × 2 × 2 × 2 × 2 × 11 × 17 × 43 × 83)See below for interesting mathematical facts about the number 21356896 from the Numbermatics database.
Names of 21356896
- Cardinal: 21356896 can be written as Twenty-one million, three hundred fifty-six thousand, eight hundred ninety-six.
Scientific notation
- Scientific notation: 2.1356896 × 107
Factors of 21356896
Divisors of 21356896
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 8 11 16 17 22 32 34 43 44 68 83 86 88 136 166 172 176 187 272 332 344 352 374 473 544 664 688 731 748 913 946 1328 1376 1411 1462 1496 1826 1892 2656 2822 2924 2992 3569 3652 3784 5644 5848 5984 7138 7304 7568 8041 11288 11696 14276 14608 15136 15521 16082 22576 23392 28552 29216 31042 32164 39259 45152 57104 60673 62084 64328 78518 114208 121346 124168 128656 157036 242692 248336 257312 314072 485384 496672 628144 667403 970768 1256288 1334806 1941536 2669612 5339224 10678448 21356896
- Sum of all divisors σ(n): 50295168
- Sum of proper divisors (its aliquot sum) s(n): 28938272
- 21356896 is an abundant number, because the sum of its proper divisors (28938272) is greater than itself. Its abundance is 7581376
Bases of 21356896
- Binary: 10100010111100001011000002
- Hexadecimal: 0x145E160
- Base-36: CPR34
Squares and roots of 21356896
- 21356896 squared (213568962) is 456117006754816
- 21356896 cubed (213568963) is 9741243477093902811136
-
The
square root of 21356896 is 4621.3521830735 -
The
cube root of 21356896 is 277.4465811739
Scales and comparisons
How big is 21356896?- 21,356,896 seconds is equal to 35 weeks, 2 days, 4 hours, 28 minutes, 16 seconds.
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To count from 1 to 21,356,896 would take you about six days!
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 21356896 cubic inches would be around 23.1 feet tall.
Recreational maths with 21356896
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