21213080
21,213,080 is an even composite number composed of five prime numbers multiplied together.
21213080 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 21213080:
23 × 5 × 72 × 79 × 137
(2 × 2 × 2 × 5 × 7 × 7 × 79 × 137)See below for interesting mathematical facts about the number 21213080 from the Numbermatics database.
Names of 21213080
- Cardinal: 21213080 can be written as Twenty-one million, two hundred thirteen thousand and eighty.
Scientific notation
- Scientific notation: 2.121308 × 107
Factors of 21213080
Divisors of 21213080
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 79 98 137 140 158 196 245 274 280 316 392 395 490 548 553 632 685 790 959 980 1096 1106 1370 1580 1918 1960 2212 2740 2765 3160 3836 3871 4424 4795 5480 5530 6713 7672 7742 9590 10823 11060 13426 15484 19180 19355 21646 22120 26852 30968 33565 38360 38710 43292 53704 54115 67130 75761 77420 86584 108230 134260 151522 154840 216460 268520 303044 378805 432920 530327 606088 757610 1060654 1515220 2121308 2651635 3030440 4242616 5303270 10606540 21213080
- Sum of all divisors σ(n): 56635200
- Sum of proper divisors (its aliquot sum) s(n): 35422120
- 21213080 is an abundant number, because the sum of its proper divisors (35422120) is greater than itself. Its abundance is 14209040
Bases of 21213080
- Binary: 10100001110101111100110002
- Hexadecimal: 0x143AF98
- Base-36: CMO48
Squares and roots of 21213080
- 21213080 squared (212130802) is 449994763086400
- 21213080 cubed (212130803) is 9545774908932850112000
-
The
square root of 21213080 is 4605.7659515003 -
The
cube root of 21213080 is 276.8224087241
Scales and comparisons
How big is 21213080?- 21,213,080 seconds is equal to 35 weeks, 12 hours, 31 minutes, 20 seconds.
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To count from 1 to 21,213,080 would take you about four 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 21213080 cubic inches would be around 23.1 feet tall.
Recreational maths with 21213080
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The information we have on file for 21213080 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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