640135680
640,135,680 is an even composite number composed of five prime numbers multiplied together.
640135680 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty divisors.
Prime factorization of 640135680:
29 × 3 × 5 × 17 × 4903
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 17 × 4903)See below for interesting mathematical facts about the number 640135680 from the Numbermatics database.
Names of 640135680
- Cardinal: 640135680 can be written as Six hundred forty million, one hundred thirty-five thousand, six hundred eighty.
Scientific notation
- Scientific notation: 6.4013568 × 108
Factors of 640135680
Divisors of 640135680
- Number of divisors d(n): 160
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 64 68 80 85 96 102 120 128 136 160 170 192 204 240 255 256 272 320 340 384 408 480 510 512 544 640 680 768 816 960 1020 1088 1280 1360 1536 1632 1920 2040 2176 2560 2720 3264 3840 4080 4352 4903 5440 6528 7680 8160 8704 9806 10880 13056 14709 16320 19612 21760 24515 26112 29418 32640 39224 43520 49030 58836 65280 73545 78448 83351 98060 117672 130560 147090 156896 166702 196120 235344 250053 294180 313792 333404 392240 416755 470688 500106 588360 627584 666808 784480 833510 941376 1000212 1176720 1250265 1255168 1333616 1568960 1667020 1882752 2000424 2353440 2500530 2510336 2667232 3137920 3334040 3765504 4000848 4706880 5001060 5334464 6275840 6668080 7531008 8001696 9413760 10002120 10668928 12551680 13336160 16003392 18827520 20004240 21337856 26672320 32006784 37655040 40008480 42675712 53344640 64013568 80016960 106689280 128027136 160033920 213378560 320067840 640135680
- Sum of all divisors σ(n): 2167254144
- Sum of proper divisors (its aliquot sum) s(n): 1527118464
- 640135680 is an abundant number, because the sum of its proper divisors (1527118464) is greater than itself. Its abundance is 886982784
Bases of 640135680
- Binary: 1001100010011110110010000000002
- Hexadecimal: 0x2627B200
- Base-36: AL4BUO
Squares and roots of 640135680
- 640135680 squared (6401356802) is 409773688809062400
- 640135680 cubed (6401356803) is 262310758931897549586432000
-
The
square root of 640135680 is 25300.9027506925 -
The
cube root of 640135680 is 861.8347703969
Scales and comparisons
How big is 640135680?- 640,135,680 seconds is equal to 20 years, 18 weeks, 2 days, 23 hours, 28 minutes.
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To count from 1 to 640,135,680 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 640135680 cubic inches would be around 71.8 feet tall.
Recreational maths with 640135680
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