21021450400
21,021,450,400 is an even composite number composed of five prime numbers multiplied together.
21021450400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 21021450400:
25 × 52 × 29 × 829 × 1093
(2 × 2 × 2 × 2 × 2 × 5 × 5 × 29 × 829 × 1093)See below for interesting mathematical facts about the number 21021450400 from the Numbermatics database.
Names of 21021450400
- Cardinal: 21021450400 can be written as Twenty-one billion, twenty-one million, four hundred fifty thousand, four hundred.
Scientific notation
- Scientific notation: 2.10214504 × 1010
Factors of 21021450400
Divisors of 21021450400
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 8 10 16 20 25 29 32 40 50 58 80 100 116 145 160 200 232 290 400 464 580 725 800 829 928 1093 1160 1450 1658 2186 2320 2900 3316 4145 4372 4640 5465 5800 6632 8290 8744 10930 11600 13264 16580 17488 20725 21860 23200 24041 26528 27325 31697 33160 34976 41450 43720 48082 54650 63394 66320 82900 87440 96164 109300 120205 126788 132640 158485 165800 174880 192328 218600 240410 253576 316970 331600 384656 437200 480820 507152 601025 633940 663200 769312 792425 874400 906097 961640 1014304 1202050 1267880 1584850 1812194 1923280 2404100 2535760 3169700 3624388 3846560 4530485 4808200 5071520 6339400 7248776 9060970 9616400 12678800 14497552 18121940 19232800 22652425 25357600 26276813 28995104 36243880 45304850 52553626 72487760 90609700 105107252 131384065 144975520 181219400 210214504 262768130 362438800 420429008 525536260 656920325 724877600 840858016 1051072520 1313840650 2102145040 2627681300 4204290080 5255362600 10510725200 21021450400
- Sum of all divisors σ(n): 53200891800
- Sum of proper divisors (its aliquot sum) s(n): 32179441400
- 21021450400 is an abundant number, because the sum of its proper divisors (32179441400) is greater than itself. Its abundance is 11157991000
Bases of 21021450400
- Binary: 100111001001111100111100000101000002
- Hexadecimal: 0x4E4F9E0A0
- Base-36: 9NNMMXS
Squares and roots of 21021450400
- 21021450400 squared (210214504002) is 441901376919660160000
- 21021450400 cubed (210214504003) is 9289407876608340838296064000000
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The
square root of 21021450400 is 144987.7594833439 -
The
cube root of 21021450400 is 2759.8632222353
Scales and comparisons
How big is 21021450400?- 21,021,450,400 seconds is equal to 668 years, 21 weeks, 4 days, 19 hours, 46 minutes, 40 seconds.
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To count from 1 to 21,021,450,400 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 21021450400 cubic inches would be around 230 feet tall.
Recreational maths with 21021450400
- 21021450400 backwards is 00405412012
- The number of decimal digits it has is: 11
- The sum of 21021450400's digits is 19
- More coming soon!
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