20720700
20,720,700 is an even composite number composed of seven prime numbers multiplied together.
20720700 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 20720700:
22 × 32 × 52 × 7 × 11 × 13 × 23
(2 × 2 × 3 × 3 × 5 × 5 × 7 × 11 × 13 × 23)See below for interesting mathematical facts about the number 20720700 from the Numbermatics database.
Names of 20720700
- Cardinal: 20720700 can be written as Twenty million, seven hundred twenty thousand, seven hundred.
Scientific notation
- Scientific notation: 2.07207 × 107
Factors of 20720700
Divisors of 20720700
- Number of divisors d(n): 432
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Complete list of divisors:
1 2 3 4 5 6 7 9 10 11 12 13 14 15 18 20 21 22 23 25 26 28 30 33 35 36 39 42 44 45 46 50 52 55 60 63 65 66 69 70 75 77 78 84 90 91 92 99 100 105 110 115 117 126 130 132 138 140 143 150 154 156 161 165 175 180 182 195 198 207 210 220 225 230 231 234 252 253 260 273 275 276 286 299 300 308 315 322 325 330 345 350 364 385 390 396 414 420 429 450 455 460 462 468 483 495 506 525 546 550 572 575 585 598 630 644 650 660 690 693 700 715 759 770 780 805 819 825 828 858 897 900 910 924 966 975 990 1001 1012 1035 1050 1092 1100 1150 1155 1170 1196 1260 1265 1287 1300 1365 1380 1386 1430 1449 1495 1518 1540 1575 1610 1638 1650 1716 1725 1771 1794 1820 1925 1932 1950 1980 2002 2070 2093 2100 2145 2275 2277 2300 2310 2340 2415 2475 2530 2574 2691 2730 2772 2860 2898 2925 2990 3003 3036 3150 3220 3276 3289 3300 3450 3465 3542 3575 3588 3795 3850 3900 4004 4025 4095 4140 4186 4290 4485 4550 4554 4620 4830 4950 5005 5060 5148 5175 5313 5382 5460 5775 5796 5850 5980 6006 6279 6300 6325 6435 6578 6825 6900 6930 7084 7150 7245 7475 7590 7700 8050 8190 8372 8580 8855 8970 9009 9100 9108 9660 9867 9900 10010 10350 10465 10626 10725 10764 11385 11550 11700 12012 12075 12558 12650 12870 13156 13455 13650 13860 14300 14490 14950 15015 15180 15939 16100 16380 16445 17325 17710 17940 18018 18837 18975 19734 20020 20475 20700 20930 21252 21450 22425 22770 23023 23100 24150 25025 25116 25300 25740 26565 26910 27300 28980 29601 29900 30030 31395 31878 32175 32890 34650 35420 36036 36225 37674 37950 39468 40950 41860 42900 44275 44850 45045 45540 46046 48300 49335 50050 52325 53130 53820 56925 59202 60060 62790 63756 64350 65780 67275 69069 69300 72450 75075 75348 75900 79695 81900 82225 88550 89700 90090 92092 94185 98670 100100 104650 106260 113850 115115 118404 125580 128700 132825 134550 138138 144900 148005 150150 156975 159390 164450 177100 180180 188370 197340 207207 209300 225225 227700 230230 246675 265650 269100 276276 296010 300300 313950 318780 328900 345345 376740 398475 414414 450450 460460 470925 493350 531300 575575 592020 627900 690690 740025 796950 828828 900900 941850 986700 1036035 1151150 1381380 1480050 1593900 1726725 1883700 2072070 2302300 2960100 3453450 4144140 5180175 6906900 10360350 20720700
- Sum of all divisors σ(n): 90994176
- Sum of proper divisors (its aliquot sum) s(n): 70273476
- 20720700 is an abundant number, because the sum of its proper divisors (70273476) is greater than itself. Its abundance is 49552776
Bases of 20720700
- Binary: 10011110000101100001111002
- Hexadecimal: 0x13C2C3C
- Base-36: CC470
Squares and roots of 20720700
- 20720700 squared (207207002) is 429347408490000
- 20720700 cubed (207207003) is 8896378847098743000000
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The
square root of 20720700 is 4551.9995606327 -
The
cube root of 20720700 is 274.6638316491
Scales and comparisons
How big is 20720700?- 20,720,700 seconds is equal to 34 weeks, 1 day, 19 hours, 45 minutes.
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To count from 1 to 20,720,700 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 20720700 cubic inches would be around 22.9 feet tall.
Recreational maths with 20720700
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