640131072
640,131,072 is an even composite number composed of four prime numbers multiplied together.
640131072 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 640131072:
213 × 3 × 7 × 612
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 61 × 61)See below for interesting mathematical facts about the number 640131072 from the Numbermatics database.
Names of 640131072
- Cardinal: 640131072 can be written as Six hundred forty million, one hundred thirty-one thousand and seventy-two.
Scientific notation
- Scientific notation: 6.40131072 × 108
Factors of 640131072
Divisors of 640131072
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 61 64 84 96 112 122 128 168 183 192 224 244 256 336 366 384 427 448 488 512 672 732 768 854 896 976 1024 1281 1344 1464 1536 1708 1792 1952 2048 2562 2688 2928 3072 3416 3584 3721 3904 4096 5124 5376 5856 6144 6832 7168 7442 7808 8192 10248 10752 11163 11712 12288 13664 14336 14884 15616 20496 21504 22326 23424 24576 26047 27328 28672 29768 31232 40992 43008 44652 46848 52094 54656 57344 59536 62464 78141 81984 86016 89304 93696 104188 109312 119072 124928 156282 163968 172032 178608 187392 208376 218624 238144 249856 312564 327936 357216 374784 416752 437248 476288 499712 625128 655872 714432 749568 833504 874496 952576 1250256 1311744 1428864 1499136 1667008 1748992 1905152 2500512 2623488 2857728 3334016 3497984 3810304 5001024 5246976 5715456 6668032 7620608 10002048 10493952 11430912 13336064 15241216 20004096 22861824 26672128 30482432 40008192 45723648 53344256 80016384 91447296 106688512 160032768 213377024 320065536 640131072
- Sum of all divisors σ(n): 1983260448
- Sum of proper divisors (its aliquot sum) s(n): 1343129376
- 640131072 is an abundant number, because the sum of its proper divisors (1343129376) is greater than itself. Its abundance is 702998304
Bases of 640131072
- Binary: 1001100010011110100000000000002
- Hexadecimal: 0x2627A000
- Base-36: AL48AO
Squares and roots of 640131072
- 640131072 squared (6401310722) is 409767789339869184
- 640131072 cubed (6401310723) is 262305094261200633093685248
-
The
square root of 640131072 is 25300.8116865843 -
The
cube root of 640131072 is 861.8327024269
Scales and comparisons
How big is 640131072?- 640,131,072 seconds is equal to 20 years, 18 weeks, 2 days, 22 hours, 11 minutes, 12 seconds.
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To count from 1 to 640,131,072 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 640131072 cubic inches would be around 71.8 feet tall.
Recreational maths with 640131072
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