20921472
20,921,472 is an even composite number composed of five prime numbers multiplied together.
20921472 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 20921472:
27 × 32 × 11 × 13 × 127
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 11 × 13 × 127)See below for interesting mathematical facts about the number 20921472 from the Numbermatics database.
Names of 20921472
- Cardinal: 20921472 can be written as Twenty million, nine hundred twenty-one thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.0921472 × 107
Factors of 20921472
Divisors of 20921472
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 13 16 18 22 24 26 32 33 36 39 44 48 52 64 66 72 78 88 96 99 104 117 127 128 132 143 144 156 176 192 198 208 234 254 264 286 288 312 352 381 384 396 416 429 468 508 528 572 576 624 704 762 792 832 858 936 1016 1056 1143 1144 1152 1248 1287 1397 1408 1524 1584 1651 1664 1716 1872 2032 2112 2286 2288 2496 2574 2794 3048 3168 3302 3432 3744 4064 4191 4224 4572 4576 4953 4992 5148 5588 6096 6336 6604 6864 7488 8128 8382 9144 9152 9906 10296 11176 12192 12573 12672 13208 13728 14859 14976 16256 16764 18161 18288 18304 19812 20592 22352 24384 25146 26416 27456 29718 33528 36322 36576 39624 41184 44704 48768 50292 52832 54483 54912 59436 67056 72644 73152 79248 82368 89408 100584 105664 108966 118872 134112 145288 146304 158496 163449 164736 178816 201168 211328 217932 237744 268224 290576 316992 326898 402336 435864 475488 536448 581152 633984 653796 804672 871728 950976 1162304 1307592 1609344 1743456 1901952 2324608 2615184 3486912 5230368 6973824 10460736 20921472
- Sum of all divisors σ(n): 71285760
- Sum of proper divisors (its aliquot sum) s(n): 50364288
- 20921472 is an abundant number, because the sum of its proper divisors (50364288) is greater than itself. Its abundance is 29442816
Bases of 20921472
- Binary: 10011111100111100100000002
- Hexadecimal: 0x13F3C80
- Base-36: CGF40
Squares and roots of 20921472
- 20921472 squared (209214722) is 437707990646784
- 20921472 cubed (209214723) is 9157495470492953346048
-
The
square root of 20921472 is 4573.9995627461 -
The
cube root of 20921472 is 275.5480947609
Scales and comparisons
How big is 20921472?- 20,921,472 seconds is equal to 34 weeks, 4 days, 3 hours, 31 minutes, 12 seconds.
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To count from 1 to 20,921,472 would take you about fifty-one weeks!
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 20921472 cubic inches would be around 23 feet tall.
Recreational maths with 20921472
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The information we have on file for 20921472 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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