21378390800
21,378,390,800 is an even composite number composed of six prime numbers multiplied together.
21378390800 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21378390800:
24 × 52 × 13 × 17 × 257 × 941
(2 × 2 × 2 × 2 × 5 × 5 × 13 × 17 × 257 × 941)See below for interesting mathematical facts about the number 21378390800 from the Numbermatics database.
Names of 21378390800
- Cardinal: 21378390800 can be written as Twenty-one billion, three hundred seventy-eight million, three hundred ninety thousand, eight hundred.
Scientific notation
- Scientific notation: 2.13783908 × 1010
Factors of 21378390800
Divisors of 21378390800
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 4 5 8 10 13 16 17 20 25 26 34 40 50 52 65 68 80 85 100 104 130 136 170 200 208 221 257 260 272 325 340 400 425 442 514 520 650 680 850 884 941 1028 1040 1105 1285 1300 1360 1700 1768 1882 2056 2210 2570 2600 3341 3400 3536 3764 4112 4369 4420 4705 5140 5200 5525 6425 6682 6800 7528 8738 8840 9410 10280 11050 12233 12850 13364 15056 15997 16705 17476 17680 18820 20560 21845 22100 23525 24466 25700 26728 31994 33410 34952 37640 43690 44200 47050 48932 51400 53456 56797 61165 63988 66820 69904 75280 79985 83525 87380 88400 94100 97864 102800 109225 113594 122330 127976 133640 159970 167050 174760 188200 195728 207961 218450 227188 241837 244660 255952 267280 283985 305825 319940 334100 349520 376400 399925 415922 436900 454376 483674 489320 567970 611650 639880 668200 799850 831844 873800 908752 967348 978640 1039805 1135940 1209185 1223300 1279760 1336400 1419925 1599700 1663688 1747600 1934696 2079610 2271880 2418370 2446600 2839850 3143881 3199400 3327376 3869392 4111229 4159220 4543760 4836740 4893200 5199025 5679700 6045925 6287762 6398800 8222458 8318440 9673480 10398050 11359400 12091850 12575524 15719405 16444916 16636880 19346960 20556145 20796100 22718800 24183700 25151048 31438810 32889832 41112290 41592200 48367400 50302096 53445977 62877620 65779664 78597025 82224580 83184400 96734800 102780725 106891954 125755240 157194050 164449160 205561450 213783908 251510480 267229885 314388100 328898320 411122900 427567816 534459770 628776200 822245800 855135632 1068919540 1257552400 1336149425 1644491600 2137839080 2672298850 4275678160 5344597700 10689195400 21378390800
- Sum of all divisors σ(n): 58856514192
- Sum of proper divisors (its aliquot sum) s(n): 37478123392
- 21378390800 is an abundant number, because the sum of its proper divisors (37478123392) is greater than itself. Its abundance is 16099732592
Bases of 21378390800
- Binary: 100111110100100000001011011000100002
- Hexadecimal: 0x4FA405B10
- Base-36: 9TK53WW
Squares and roots of 21378390800
- 21378390800 squared (213783908002) is 457035593197524640000
- 21378390800 cubed (213783908003) is 9770685520886503346549312000000
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The
square root of 21378390800 is 146213.5110036005 -
The
cube root of 21378390800 is 2775.3962932667
Scales and comparisons
How big is 21378390800?- 21,378,390,800 seconds is equal to 679 years, 39 weeks, 6 days, 1 hour, 53 minutes, 20 seconds.
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To count from 1 to 21,378,390,800 would take you about one thousand, three hundred fifty-nine 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 21378390800 cubic inches would be around 231.3 feet tall.
Recreational maths with 21378390800
- 21378390800 backwards is 00809387312
- The number of decimal digits it has is: 11
- The sum of 21378390800's digits is 41
- More coming soon!
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