20995920
20,995,920 is an even composite number composed of five prime numbers multiplied together.
20995920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 20995920:
24 × 32 × 5 × 112 × 241
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 11 × 11 × 241)See below for interesting mathematical facts about the number 20995920 from the Numbermatics database.
Names of 20995920
- Cardinal: 20995920 can be written as Twenty million, nine hundred ninety-five thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.099592 × 107
Factors of 20995920
Divisors of 20995920
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 44 45 48 55 60 66 72 80 88 90 99 110 120 121 132 144 165 176 180 198 220 240 241 242 264 330 360 363 396 440 482 484 495 528 605 660 720 723 726 792 880 964 968 990 1089 1205 1210 1320 1446 1452 1584 1815 1928 1936 1980 2169 2178 2410 2420 2640 2651 2892 2904 3615 3630 3856 3960 4338 4356 4820 4840 5302 5445 5784 5808 7230 7260 7920 7953 8676 8712 9640 9680 10604 10845 10890 11568 13255 14460 14520 15906 17352 17424 19280 21208 21690 21780 23859 26510 28920 29040 29161 31812 34704 39765 42416 43380 43560 47718 53020 57840 58322 63624 79530 86760 87120 87483 95436 106040 116644 119295 127248 145805 159060 173520 174966 190872 212080 233288 238590 262449 291610 318120 349932 381744 437415 466576 477180 524898 583220 636240 699864 874830 954360 1049796 1166440 1312245 1399728 1749660 1908720 2099592 2332880 2624490 3499320 4199184 5248980 6998640 10497960 20995920
- Sum of all divisors σ(n): 77825748
- Sum of proper divisors (its aliquot sum) s(n): 56829828
- 20995920 is an abundant number, because the sum of its proper divisors (56829828) is greater than itself. Its abundance is 35833908
Bases of 20995920
- Binary: 10100000001011111010100002
- Hexadecimal: 0x1405F50
- Base-36: CI0K0
Squares and roots of 20995920
- 20995920 squared (209959202) is 440828656646400
- 20995920 cubed (209959203) is 9255603208655282688000
-
The
square root of 20995920 is 4582.1305088353 -
The
cube root of 20995920 is 275.8745491623
Scales and comparisons
How big is 20995920?- 20,995,920 seconds is equal to 34 weeks, 5 days, 12 minutes.
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To count from 1 to 20,995,920 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 20995920 cubic inches would be around 23 feet tall.
Recreational maths with 20995920
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