21378021760
21,378,021,760 is an even composite number composed of five prime numbers multiplied together.
21378021760 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 21378021760:
27 × 5 × 19 × 109 × 1272
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 19 × 109 × 127 × 127)See below for interesting mathematical facts about the number 21378021760 from the Numbermatics database.
Names of 21378021760
- Cardinal: 21378021760 can be written as Twenty-one billion, three hundred seventy-eight million, twenty-one thousand, seven hundred sixty.
Scientific notation
- Scientific notation: 2.137802176 × 1010
Factors of 21378021760
Divisors of 21378021760
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 109 127 128 152 160 190 218 254 304 320 380 436 508 545 608 635 640 760 872 1016 1090 1216 1270 1520 1744 2032 2071 2180 2413 2432 2540 3040 3488 4064 4142 4360 4826 5080 6080 6976 8128 8284 8720 9652 10160 10355 12065 12160 13843 13952 16129 16256 16568 17440 19304 20320 20710 24130 27686 32258 33136 34880 38608 40640 41420 48260 55372 64516 66272 69215 69760 77216 80645 81280 82840 96520 110744 129032 132544 138430 154432 161290 165680 193040 221488 258064 263017 265088 276860 306451 308864 322580 331360 386080 442976 516128 526034 553720 612902 645160 662720 772160 885952 1032256 1052068 1107440 1225804 1290320 1315085 1325440 1532255 1544320 1758061 1771904 2064512 2104136 2214880 2451608 2580640 2630170 3064510 3516122 4208272 4429760 4903216 5161280 5260340 6129020 7032244 8416544 8790305 8859520 9806432 10322560 10520680 12258040 14064488 16833088 17580610 19612864 21041360 24516080 28128976 33403159 33666176 35161220 39225728 42082720 49032160 56257952 66806318 70322440 84165440 98064320 112515904 133612636 140644880 167015795 168330880 196128640 225031808 267225272 281289760 334031590 534450544 562579520 668063180 1068901088 1125159040 1336126360 2137802176 2672252720 4275604352 5344505440 10689010880 21378021760
- Sum of all divisors σ(n): 54721062000
- Sum of proper divisors (its aliquot sum) s(n): 33343040240
- 21378021760 is an abundant number, because the sum of its proper divisors (33343040240) is greater than itself. Its abundance is 11965018480
Bases of 21378021760
- Binary: 100111110100011101010111001100000002
- Hexadecimal: 0x4FA3AB980
- Base-36: 9TJX75S
Squares and roots of 21378021760
- 21378021760 squared (213780217602) is 457019814371033497600
- 21378021760 cubed (213780217603) is 9770179536375114825381707776000
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The
square root of 21378021760 is 146212.2490080773 -
The
cube root of 21378021760 is 2775.3803232755
Scales and comparisons
How big is 21378021760?- 21,378,021,760 seconds is equal to 679 years, 39 weeks, 1 day, 19 hours, 22 minutes, 40 seconds.
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To count from 1 to 21,378,021,760 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 21378021760 cubic inches would be around 231.3 feet tall.
Recreational maths with 21378021760
- 21378021760 backwards is 06712087312
- The number of decimal digits it has is: 11
- The sum of 21378021760's digits is 37
- More coming soon!
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