20797920
20,797,920 is an even composite number composed of six prime numbers multiplied together.
20797920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 20797920:
25 × 32 × 5 × 11 × 13 × 101
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 11 × 13 × 101)See below for interesting mathematical facts about the number 20797920 from the Numbermatics database.
Names of 20797920
- Cardinal: 20797920 can be written as Twenty million, seven hundred ninety-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.079792 × 107
Factors of 20797920
Divisors of 20797920
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 11 12 13 15 16 18 20 22 24 26 30 32 33 36 39 40 44 45 48 52 55 60 65 66 72 78 80 88 90 96 99 101 104 110 117 120 130 132 143 144 156 160 165 176 180 195 198 202 208 220 234 240 260 264 286 288 303 312 330 352 360 390 396 404 416 429 440 468 480 495 505 520 528 572 585 606 624 660 715 720 780 792 808 858 880 909 936 990 1010 1040 1056 1111 1144 1170 1212 1248 1287 1313 1320 1430 1440 1515 1560 1584 1616 1716 1760 1818 1872 1980 2020 2080 2145 2222 2288 2340 2424 2574 2626 2640 2860 3030 3120 3168 3232 3333 3432 3636 3744 3939 3960 4040 4290 4444 4545 4576 4680 4848 5148 5252 5280 5555 5720 6060 6240 6435 6565 6666 6864 7272 7878 7920 8080 8580 8888 9090 9360 9696 9999 10296 10504 11110 11440 11817 12120 12870 13130 13332 13728 14443 14544 15756 15840 16160 16665 17160 17776 18180 18720 19695 19998 20592 21008 22220 22880 23634 24240 25740 26260 26664 28886 29088 31512 33330 34320 35552 36360 39390 39996 41184 42016 43329 44440 47268 48480 49995 51480 52520 53328 57772 59085 63024 66660 68640 72215 72720 78780 79992 86658 88880 94536 99990 102960 105040 106656 115544 118170 126048 129987 133320 144430 145440 157560 159984 173316 177760 189072 199980 205920 210080 216645 231088 236340 259974 266640 288860 315120 319968 346632 378144 399960 433290 462176 472680 519948 533280 577720 630240 649935 693264 799920 866580 945360 1039896 1155440 1299870 1386528 1599840 1733160 1890720 2079792 2310880 2599740 3466320 4159584 5199480 6932640 10398960 20797920
- Sum of all divisors σ(n): 84206304
- Sum of proper divisors (its aliquot sum) s(n): 63408384
- 20797920 is an abundant number, because the sum of its proper divisors (63408384) is greater than itself. Its abundance is 42610464
Bases of 20797920
- Binary: 10011110101011001111000002
- Hexadecimal: 0x13D59E0
- Base-36: CDRS0
Squares and roots of 20797920
- 20797920 squared (207979202) is 432553476326400
- 20797920 cubed (207979203) is 8996212596358361088000
-
The
square root of 20797920 is 4560.4736596103 -
The
cube root of 20797920 is 275.0046059835
Scales and comparisons
How big is 20797920?- 20,797,920 seconds is equal to 34 weeks, 2 days, 17 hours, 12 minutes.
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To count from 1 to 20,797,920 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 20797920 cubic inches would be around 22.9 feet tall.
Recreational maths with 20797920
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