20995520
20,995,520 is an even composite number composed of five prime numbers multiplied together.
20995520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 20995520:
26 × 5 × 72 × 13 × 103
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 13 × 103)See below for interesting mathematical facts about the number 20995520 from the Numbermatics database.
Names of 20995520
- Cardinal: 20995520 can be written as Twenty million, nine hundred ninety-five thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.099552 × 107
Factors of 20995520
Divisors of 20995520
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 49 52 56 64 65 70 80 91 98 103 104 112 130 140 160 182 196 206 208 224 245 260 280 320 364 392 412 416 448 455 490 515 520 560 637 721 728 784 824 832 910 980 1030 1040 1120 1274 1339 1442 1456 1568 1648 1820 1960 2060 2080 2240 2548 2678 2884 2912 3136 3185 3296 3605 3640 3920 4120 4160 5047 5096 5356 5768 5824 6370 6592 6695 7210 7280 7840 8240 9373 10094 10192 10712 11536 12740 13390 14420 14560 15680 16480 18746 20188 20384 21424 23072 25235 25480 26780 28840 29120 32960 37492 40376 40768 42848 46144 46865 50470 50960 53560 57680 65611 74984 80752 85696 93730 100940 101920 107120 115360 131222 149968 161504 187460 201880 203840 214240 230720 262444 299936 323008 328055 374920 403760 428480 524888 599872 656110 749840 807520 1049776 1312220 1499680 1615040 2099552 2624440 2999360 4199104 5248880 10497760 20995520
- Sum of all divisors σ(n): 63239904
- Sum of proper divisors (its aliquot sum) s(n): 42244384
- 20995520 is an abundant number, because the sum of its proper divisors (42244384) is greater than itself. Its abundance is 21248864
Bases of 20995520
- Binary: 10100000001011101110000002
- Hexadecimal: 0x1405DC0
- Base-36: CI08W
Squares and roots of 20995520
- 20995520 squared (209955202) is 440811860070400
- 20995520 cubed (209955203) is 9255074224345284608000
-
The
square root of 20995520 is 4582.0868608091 -
The
cube root of 20995520 is 275.8727972265
Scales and comparisons
How big is 20995520?- 20,995,520 seconds is equal to 34 weeks, 5 days, 5 minutes, 20 seconds.
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To count from 1 to 20,995,520 would take you about twelve hours!
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 20995520 cubic inches would be around 23 feet tall.
Recreational maths with 20995520
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