21080018400
21,080,018,400 is an even composite number composed of six prime numbers multiplied together.
21080018400 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 21080018400:
25 × 3 × 52 × 7 × 853 × 1471
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 7 × 853 × 1471)See below for interesting mathematical facts about the number 21080018400 from the Numbermatics database.
Names of 21080018400
- Cardinal: 21080018400 can be written as Twenty-one billion, eighty million, eighteen thousand, four hundred.
Scientific notation
- Scientific notation: 2.10800184 × 1010
Factors of 21080018400
Divisors of 21080018400
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 32 35 40 42 48 50 56 60 70 75 80 84 96 100 105 112 120 140 150 160 168 175 200 210 224 240 280 300 336 350 400 420 480 525 560 600 672 700 800 840 853 1050 1120 1200 1400 1471 1680 1706 2100 2400 2559 2800 2942 3360 3412 4200 4265 4413 5118 5600 5884 5971 6824 7355 8400 8530 8826 10236 10297 11768 11942 12795 13648 14710 16800 17060 17652 17913 20472 20594 21325 22065 23536 23884 25590 27296 29420 29855 30891 34120 35304 35826 36775 40944 41188 42650 44130 47072 47768 51180 51485 58840 59710 61782 63975 68240 70608 71652 73550 81888 82376 85300 88260 89565 95536 102360 102970 110325 117680 119420 123564 127950 136480 141216 143304 147100 149275 154455 164752 170600 176520 179130 191072 204720 205940 220650 235360 238840 247128 255900 257425 286608 294200 298550 308910 329504 341200 353040 358260 409440 411880 441300 447825 477680 494256 511800 514850 573216 588400 597100 617820 682400 706080 716520 772275 823760 882600 895650 955360 988512 1023600 1029700 1176800 1194200 1235640 1254763 1433040 1544550 1647520 1765200 1791300 2047200 2059400 2388400 2471280 2509526 2866080 3089100 3530400 3582600 3764289 4118800 4776800 4942560 5019052 6178200 6273815 7165200 7528578 8237600 8783341 10038104 12356400 12547630 14330400 15057156 17566682 18821445 20076208 24712800 25095260 26350023 30114312 31369075 35133364 37642890 40152416 43916705 50190520 52700046 60228624 62738150 70266728 75285780 87833410 94107225 100381040 105400092 120457248 125476300 131750115 140533456 150571560 175666820 188214450 200762080 210800184 219583525 250952600 263500230 281066912 301143120 351333640 376428900 421600368 439167050 501905200 527000460 602286240 658750575 702667280 752857800 843200736 878334100 1003810400 1054000920 1317501150 1405334560 1505715600 1756668200 2108001840 2635002300 3011431200 3513336400 4216003680 5270004600 7026672800 10540009200 21080018400
- Sum of all divisors σ(n): 78562971648
- Sum of proper divisors (its aliquot sum) s(n): 57482953248
- 21080018400 is an abundant number, because the sum of its proper divisors (57482953248) is greater than itself. Its abundance is 36402934848
Bases of 21080018400
- Binary: 100111010000111011110001101111000002
- Hexadecimal: 0x4E8778DE0
- Base-36: 9OMHYAO
Squares and roots of 21080018400
- 21080018400 squared (210800184002) is 444367175744338560000
- 21080018400 cubed (210800184003) is 9367268241046690540629504000000
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The
square root of 21080018400 is 145189.5946684885 -
The
cube root of 21080018400 is 2762.4239365363
Scales and comparisons
How big is 21080018400?- 21,080,018,400 seconds is equal to 670 years, 14 weeks, 3 days, 16 hours, 40 minutes.
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To count from 1 to 21,080,018,400 would take you about one thousand, three hundred forty 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 21080018400 cubic inches would be around 230.2 feet tall.
Recreational maths with 21080018400
- 21080018400 backwards is 00481008012
- 21080018400 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21080018400's digits is 24
- More coming soon!
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