642993520
642,993,520 is an even composite number composed of five prime numbers multiplied together.
642993520 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 642993520:
24 × 5 × 13 × 23 × 26881
(2 × 2 × 2 × 2 × 5 × 13 × 23 × 26881)See below for interesting mathematical facts about the number 642993520 from the Numbermatics database.
Names of 642993520
- Cardinal: 642993520 can be written as Six hundred forty-two million, nine hundred ninety-three thousand, five hundred twenty.
Scientific notation
- Scientific notation: 6.4299352 × 108
Factors of 642993520
Divisors of 642993520
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 23 26 40 46 52 65 80 92 104 115 130 184 208 230 260 299 368 460 520 598 920 1040 1196 1495 1840 2392 2990 4784 5980 11960 23920 26881 53762 107524 134405 215048 268810 349453 430096 537620 618263 698906 1075240 1236526 1397812 1747265 2150480 2473052 2795624 3091315 3494530 4946104 5591248 6182630 6989060 8037419 9892208 12365260 13978120 16074838 24730520 27956240 32149676 40187095 49461040 64299352 80374190 128598704 160748380 321496760 642993520
- Sum of all divisors σ(n): 1680017472
- Sum of proper divisors (its aliquot sum) s(n): 1037023952
- 642993520 is an abundant number, because the sum of its proper divisors (1037023952) is greater than itself. Its abundance is 394030432
Bases of 642993520
- Binary: 1001100101001101001101011100002
- Hexadecimal: 0x26534D70
- Base-36: AMTKZ4
Squares and roots of 642993520
- 642993520 squared (6429935202) is 413440666761990400
- 642993520 cubed (6429935203) is 265839669632439209502208000
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The
square root of 642993520 is 25357.3168927629 -
The
cube root of 642993520 is 863.1153997729
Scales and comparisons
How big is 642993520?- 642,993,520 seconds is equal to 20 years, 23 weeks, 1 day, 1 hour, 18 minutes, 40 seconds.
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To count from 1 to 642,993,520 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 642993520 cubic inches would be around 71.9 feet tall.
Recreational maths with 642993520
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