640142272
640,142,272 is an even composite number composed of four prime numbers multiplied together.
640142272 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 640142272:
26 × 73 × 112 × 241
(2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 7 × 11 × 11 × 241)See below for interesting mathematical facts about the number 640142272 from the Numbermatics database.
Names of 640142272
- Cardinal: 640142272 can be written as Six hundred forty million, one hundred forty-two thousand, two hundred seventy-two.
Scientific notation
- Scientific notation: 6.40142272 × 108
Factors of 640142272
Divisors of 640142272
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 4 7 8 11 14 16 22 28 32 44 49 56 64 77 88 98 112 121 154 176 196 224 241 242 308 343 352 392 448 482 484 539 616 686 704 784 847 964 968 1078 1232 1372 1568 1687 1694 1928 1936 2156 2464 2651 2744 3136 3374 3388 3773 3856 3872 4312 4928 5302 5488 5929 6748 6776 7546 7712 7744 8624 10604 10976 11809 11858 13496 13552 15092 15424 17248 18557 21208 21952 23618 23716 26992 27104 29161 30184 34496 37114 41503 42416 47236 47432 53984 54208 58322 60368 74228 82663 83006 84832 94472 94864 107968 116644 120736 129899 148456 165326 166012 169664 188944 189728 204127 233288 241472 259798 296912 330652 332024 377888 379456 408254 466576 519596 593824 661304 664048 755776 816508 909293 933152 1039192 1187648 1322608 1328096 1428889 1633016 1818586 1866304 2078384 2645216 2656192 2857778 3266032 3637172 4156768 5290432 5715556 6532064 7274344 8313536 10002223 11431112 13064128 14548688 20004446 22862224 29097376 40008892 45724448 58194752 80017784 91448896 160035568 320071136 640142272
- Sum of all divisors σ(n): 1635048800
- Sum of proper divisors (its aliquot sum) s(n): 994906528
- 640142272 is an abundant number, because the sum of its proper divisors (994906528) is greater than itself. Its abundance is 354764256
Bases of 640142272
- Binary: 1001100010011111001011110000002
- Hexadecimal: 0x2627CBC0
- Base-36: AL4GXS
Squares and roots of 640142272
- 640142272 squared (6401422722) is 409782128401321984
- 640142272 cubed (6401422723) is 262318862699817982641307648
-
The
square root of 640142272 is 25301.0330223887 -
The
cube root of 640142272 is 861.8377287259
Scales and comparisons
How big is 640142272?- 640,142,272 seconds is equal to 20 years, 18 weeks, 3 days, 1 hour, 17 minutes, 52 seconds.
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To count from 1 to 640,142,272 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 640142272 cubic inches would be around 71.8 feet tall.
Recreational maths with 640142272
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