20852640
20,852,640 is an even composite number composed of four prime numbers multiplied together.
20852640 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 20852640:
25 × 34 × 5 × 1609
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 1609)See below for interesting mathematical facts about the number 20852640 from the Numbermatics database.
Names of 20852640
- Cardinal: 20852640 can be written as Twenty million, eight hundred fifty-two thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.085264 × 107
Factors of 20852640
Divisors of 20852640
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 81 90 96 108 120 135 144 160 162 180 216 240 270 288 324 360 405 432 480 540 648 720 810 864 1080 1296 1440 1609 1620 2160 2592 3218 3240 4320 4827 6436 6480 8045 9654 12872 12960 14481 16090 19308 24135 25744 28962 32180 38616 43443 48270 51488 57924 64360 72405 77232 86886 96540 115848 128720 130329 144810 154464 173772 193080 217215 231696 257440 260658 289620 347544 386160 434430 463392 521316 579240 651645 695088 772320 868860 1042632 1158480 1303290 1390176 1737720 2085264 2316960 2606580 3475440 4170528 5213160 6950880 10426320 20852640
- Sum of all divisors σ(n): 73638180
- Sum of proper divisors (its aliquot sum) s(n): 52785540
- 20852640 is an abundant number, because the sum of its proper divisors (52785540) is greater than itself. Its abundance is 31932900
Bases of 20852640
- Binary: 10011111000101111101000002
- Hexadecimal: 0x13E2FA0
- Base-36: CEY00
Squares and roots of 20852640
- 20852640 squared (208526402) is 434832594969600
- 20852640 cubed (208526403) is 9067407563166879744000
-
The
square root of 20852640 is 4566.4690954829 -
The
cube root of 20852640 is 275.2455767763
Scales and comparisons
How big is 20852640?- 20,852,640 seconds is equal to 34 weeks, 3 days, 8 hours, 24 minutes.
-
To count from 1 to 20,852,640 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 20852640 cubic inches would be around 22.9 feet tall.
Recreational maths with 20852640
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