642838272
642,838,272 is an even composite number composed of five prime numbers multiplied together.
642838272 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 642838272:
28 × 3 × 17 × 53 × 929
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 17 × 53 × 929)See below for interesting mathematical facts about the number 642838272 from the Numbermatics database.
Names of 642838272
- Cardinal: 642838272 can be written as Six hundred forty-two million, eight hundred thirty-eight thousand, two hundred seventy-two.
Scientific notation
- Scientific notation: 6.42838272 × 108
Factors of 642838272
Divisors of 642838272
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 8 12 16 17 24 32 34 48 51 53 64 68 96 102 106 128 136 159 192 204 212 256 272 318 384 408 424 544 636 768 816 848 901 929 1088 1272 1632 1696 1802 1858 2176 2544 2703 2787 3264 3392 3604 3716 4352 5088 5406 5574 6528 6784 7208 7432 10176 10812 11148 13056 13568 14416 14864 15793 20352 21624 22296 28832 29728 31586 40704 43248 44592 47379 49237 57664 59456 63172 86496 89184 94758 98474 115328 118912 126344 147711 172992 178368 189516 196948 230656 237824 252688 295422 345984 356736 379032 393896 505376 590844 691968 713472 758064 787792 837029 1010752 1181688 1516128 1575584 1674058 2021504 2363376 2511087 3032256 3151168 3348116 4043008 4726752 5022174 6064512 6302336 6696232 9453504 10044348 12129024 12604672 13392464 18907008 20088696 26784928 37814016 40177392 53569856 80354784 107139712 160709568 214279424 321419136 642838272
- Sum of all divisors σ(n): 1847694240
- Sum of proper divisors (its aliquot sum) s(n): 1204855968
- 642838272 is an abundant number, because the sum of its proper divisors (1204855968) is greater than itself. Its abundance is 562017696
Bases of 642838272
- Binary: 1001100101000011101111000000002
- Hexadecimal: 0x2650EF00
- Base-36: AMQ96O
Squares and roots of 642838272
- 642838272 squared (6428382722) is 413241043947945984
- 642838272 cubed (6428382723) is 265647158610973654303899648
-
The
square root of 642838272 is 25354.2555008029 -
The
cube root of 642838272 is 863.0459290233
Scales and comparisons
How big is 642838272?- 642,838,272 seconds is equal to 20 years, 22 weeks, 6 days, 6 hours, 11 minutes, 12 seconds.
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To count from 1 to 642,838,272 would take you about thirty 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 642838272 cubic inches would be around 71.9 feet tall.
Recreational maths with 642838272
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