640149248
640,149,248 is an even composite number composed of four prime numbers multiplied together.
640149248 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 640149248:
28 × 232 × 29 × 163
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 23 × 23 × 29 × 163)See below for interesting mathematical facts about the number 640149248 from the Numbermatics database.
Names of 640149248
- Cardinal: 640149248 can be written as Six hundred forty million, one hundred forty-nine thousand, two hundred forty-eight.
Scientific notation
- Scientific notation: 6.40149248 × 108
Factors of 640149248
Divisors of 640149248
- Number of divisors d(n): 108
-
Complete list of divisors:
1 2 4 8 16 23 29 32 46 58 64 92 116 128 163 184 232 256 326 368 464 529 652 667 736 928 1058 1304 1334 1472 1856 2116 2608 2668 2944 3712 3749 4232 4727 5216 5336 5888 7424 7498 8464 9454 10432 10672 14996 15341 16928 18908 20864 21344 29992 30682 33856 37816 41728 42688 59984 61364 67712 75632 85376 86227 108721 119968 122728 135424 151264 170752 172454 217442 239936 245456 302528 344908 434884 479872 490912 605056 689816 869768 959744 981824 1210112 1379632 1739536 1963648 2500583 2759264 3479072 3927296 5001166 5518528 6958144 10002332 11037056 13916288 20004664 22074112 27832576 40009328 80018656 160037312 320074624 640149248
- Sum of all divisors σ(n): 1390308360
- Sum of proper divisors (its aliquot sum) s(n): 750159112
- 640149248 is an abundant number, because the sum of its proper divisors (750159112) is greater than itself. Its abundance is 110009864
Bases of 640149248
- Binary: 1001100010011111100111000000002
- Hexadecimal: 0x2627E700
- Base-36: AL4MBK
Squares and roots of 640149248
- 640149248 squared (6401492482) is 409791059714965504
- 640149248 cubed (6401492483) is 262327438713658261731540992
-
The
square root of 640149248 is 25301.1708819967 -
The
cube root of 640149248 is 861.8408593621
Scales and comparisons
How big is 640149248?- 640,149,248 seconds is equal to 20 years, 18 weeks, 3 days, 3 hours, 14 minutes, 8 seconds.
-
To count from 1 to 640,149,248 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 640149248 cubic inches would be around 71.8 feet tall.
Recreational maths with 640149248
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