20988647680
20,988,647,680 is an even composite number composed of six prime numbers multiplied together.
20988647680 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 20988647680:
28 × 5 × 7 × 11 × 13 × 16381
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 13 × 16381)See below for interesting mathematical facts about the number 20988647680 from the Numbermatics database.
Names of 20988647680
- Cardinal: 20988647680 can be written as Twenty billion, nine hundred eighty-eight million, six hundred forty-seven thousand, six hundred eighty.
Scientific notation
- Scientific notation: 2.098864768 × 1010
Factors of 20988647680
Divisors of 20988647680
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 32 35 40 44 52 55 56 64 65 70 77 80 88 91 104 110 112 128 130 140 143 154 160 176 182 208 220 224 256 260 280 286 308 320 352 364 385 416 440 448 455 520 560 572 616 640 704 715 728 770 832 880 896 910 1001 1040 1120 1144 1232 1280 1408 1430 1456 1540 1664 1760 1792 1820 2002 2080 2240 2288 2464 2816 2860 2912 3080 3328 3520 3640 4004 4160 4480 4576 4928 5005 5720 5824 6160 7040 7280 8008 8320 8960 9152 9856 10010 11440 11648 12320 14080 14560 16016 16381 16640 18304 19712 20020 22880 23296 24640 29120 32032 32762 36608 40040 45760 49280 58240 64064 65524 80080 81905 91520 98560 114667 116480 128128 131048 160160 163810 180191 183040 212953 229334 256256 262096 320320 327620 360382 425906 458668 524192 573335 640640 655240 720764 851812 900955 917336 1048384 1064765 1146670 1261337 1281280 1310480 1441528 1490671 1703624 1801910 1834672 2096768 2129530 2293340 2342483 2522674 2620960 2883056 2981342 3407248 3603820 3669344 4193536 4259060 4586680 4684966 5045348 5241920 5766112 5962684 6306685 6814496 7207640 7338688 7453355 8518120 9173360 9369932 10090696 10483840 11532224 11712415 11925368 12613370 13628992 14415280 14677376 14906710 16397381 17036240 18346720 18739864 20181392 20967680 23064448 23424830 23850736 25226740 27257984 28830560 29354752 29813420 32794762 34072480 36693440 37479728 40362784 46128896 46849660 47701472 50453480 54515968 57661120 59626840 65589524 68144960 73386880 74959456 80725568 81986905 93699320 95402944 100906960 115322240 119253680 131179048 136289920 146773760 149918912 161451136 163973810 187398640 190805888 201813920 230644480 238507360 262358096 272579840 299837824 322902272 327947620 374797280 381611776 403627840 477014720 524716192 599675648 655895240 749594560 807255680 954029440 1049432384 1311790480 1499189120 1614511360 1908058880 2098864768 2623580960 2998378240 4197729536 5247161920 10494323840 20988647680
- Sum of all divisors σ(n): 67505372928
- Sum of proper divisors (its aliquot sum) s(n): 46516725248
- 20988647680 is an abundant number, because the sum of its proper divisors (46516725248) is greater than itself. Its abundance is 25528077568
Bases of 20988647680
- Binary: 100111000110000010101011001000000002
- Hexadecimal: 0x4E3055900
- Base-36: 9N43K74
Squares and roots of 20988647680
- 20988647680 squared (209886476802) is 440523331435169382400
- 20988647680 cubed (209886476803) is 9245988998312638928316792832000
-
The
square root of 20988647680 is 144874.5929416199 -
The
cube root of 20988647680 is 2758.4269408961
Scales and comparisons
How big is 20988647680?- 20,988,647,680 seconds is equal to 667 years, 19 weeks, 3 days, 3 hours, 54 minutes, 40 seconds.
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To count from 1 to 20,988,647,680 would take you about one thousand, three hundred thirty-four 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 20988647680 cubic inches would be around 229.9 feet tall.
Recreational maths with 20988647680
- 20988647680 backwards is 08674688902
- The number of decimal digits it has is: 11
- The sum of 20988647680's digits is 58
- More coming soon!
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