20388438980
20,388,438,980 is an even composite number composed of eight prime numbers multiplied together.
20388438980 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 20388438980:
22 × 5 × 7 × 13 × 17 × 29 × 31 × 733
(2 × 2 × 5 × 7 × 13 × 17 × 29 × 31 × 733)See below for interesting mathematical facts about the number 20388438980 from the Numbermatics database.
Names of 20388438980
- Cardinal: 20388438980 can be written as Twenty billion, three hundred eighty-eight million, four hundred thirty-eight thousand, nine hundred eighty.
Scientific notation
- Scientific notation: 2.038843898 × 1010
Factors of 20388438980
Divisors of 20388438980
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 4 5 7 10 13 14 17 20 26 28 29 31 34 35 52 58 62 65 68 70 85 91 116 119 124 130 140 145 155 170 182 203 217 221 238 260 290 310 340 364 377 403 406 434 442 455 476 493 527 580 595 620 733 754 806 812 868 884 899 910 986 1015 1054 1085 1105 1190 1466 1508 1547 1612 1798 1820 1885 1972 2015 2030 2108 2170 2210 2380 2465 2635 2639 2821 2932 3094 3451 3596 3665 3689 3770 4030 4060 4340 4420 4495 4930 5131 5270 5278 5642 6188 6293 6409 6851 6902 7330 7378 7540 7735 8060 8990 9529 9860 10262 10540 10556 11284 11687 12461 12586 12818 13195 13702 13804 14105 14660 14756 15283 15470 17255 17980 18445 19058 20524 21257 22723 23374 24922 25172 25636 25655 26390 27404 28210 30566 30940 31465 32045 34255 34510 36890 38116 42514 44863 45446 46748 47645 47957 49844 51310 52780 56420 58435 61132 62305 62930 64090 66703 68510 69020 73780 76415 81809 85028 87227 89726 90892 95290 95914 102620 106285 106981 113615 116870 124610 125860 128180 133406 137020 148799 152830 159061 161993 163618 174454 179452 190580 191828 198679 212570 213962 224315 227230 233740 239785 249220 266812 276341 295399 297598 305660 318122 323986 327236 333515 348908 361369 386291 397358 409045 425140 427924 436135 448630 454460 479570 534905 552682 590798 595196 636244 647972 658967 667030 722738 743995 772582 794716 795305 809965 818090 872270 897260 959140 993395 1069810 1105364 1133951 1181596 1317934 1334060 1381705 1390753 1445476 1476995 1487990 1545164 1590610 1619930 1636180 1744540 1806845 1931455 1934387 1986790 2067793 2139620 2267902 2529583 2635868 2704037 2763410 2781506 2953990 2975980 3181220 3239860 3294835 3613690 3862910 3868774 3973580 4135586 4535804 4612769 4697797 5021783 5059166 5408074 5526820 5563012 5669755 5907980 6589670 6953765 7227380 7725820 7737548 8271172 8566571 9225538 9395594 9671935 10043566 10118332 10338965 10816148 11202439 11339510 12647915 13179340 13520185 13907530 17133142 18451076 18791188 19343870 20087132 20677930 22404878 22679020 23063845 23488985 25108915 25295830 27040370 27815060 32884579 34266284 35152481 38687740 41355860 42832855 44809756 46127690 46977970 50217830 50591660 54080740 56012195 59965997 65769158 70304962 78417073 85665710 92255380 93955940 100435660 112024390 119931994 131538316 140609924 145631707 156834146 164422895 171331420 175762405 224048780 239863988 291263414 299829985 313668292 328845790 351524810 392085365 582526828 599659970 657691580 703049620 728158535 784170730 1019421949 1199319940 1456317070 1568341460 2038843898 2912634140 4077687796 5097109745 10194219490 20388438980
- Sum of all divisors σ(n): 59663278080
- Sum of proper divisors (its aliquot sum) s(n): 39274839100
- 20388438980 is an abundant number, because the sum of its proper divisors (39274839100) is greater than itself. Its abundance is 18886400120
Bases of 20388438980
- Binary: 100101111110011111011100011110001002
- Hexadecimal: 0x4BF3EE3C4
- Base-36: 9D6R078
Squares and roots of 20388438980
- 20388438980 squared (203884389802) is 415688444041183440400
- 20388438980 cubed (203884389803) is 8475238476024813181581866792000
-
The
square root of 20388438980 is 142788.0911700973 -
The
cube root of 20388438980 is 2731.8781540723
Scales and comparisons
How big is 20388438980?- 20,388,438,980 seconds is equal to 648 years, 15 weeks, 7 hours, 16 minutes, 20 seconds.
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To count from 1 to 20,388,438,980 would take you about one thousand, two hundred ninety-six years!
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 20388438980 cubic inches would be around 227.7 feet tall.
Recreational maths with 20388438980
- 20388438980 backwards is 08983488302
- The number of decimal digits it has is: 11
- The sum of 20388438980's digits is 53
- More coming soon!
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