640145016
640,145,016 is an even composite number composed of four prime numbers multiplied together.
640145016 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 640145016:
23 × 32 × 75 × 232
(2 × 2 × 2 × 3 × 3 × 7 × 7 × 7 × 7 × 7 × 23 × 23)See below for interesting mathematical facts about the number 640145016 from the Numbermatics database.
Names of 640145016
- Cardinal: 640145016 can be written as Six hundred forty million, one hundred forty-five thousand and sixteen.
Scientific notation
- Scientific notation: 6.40145016 × 108
Factors of 640145016
Divisors of 640145016
- Number of divisors d(n): 216
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 18 21 23 24 28 36 42 46 49 56 63 69 72 84 92 98 126 138 147 161 168 184 196 207 252 276 294 322 343 392 414 441 483 504 529 552 588 644 686 828 882 966 1029 1058 1127 1176 1288 1372 1449 1587 1656 1764 1932 2058 2116 2254 2401 2744 2898 3087 3174 3381 3528 3703 3864 4116 4232 4508 4761 4802 5796 6174 6348 6762 7203 7406 7889 8232 9016 9522 9604 10143 11109 11592 12348 12696 13524 14406 14812 15778 16807 19044 19208 20286 21609 22218 23667 24696 25921 27048 28812 29624 31556 33327 33614 38088 40572 43218 44436 47334 50421 51842 55223 57624 63112 66654 67228 71001 77763 81144 86436 88872 94668 100842 103684 110446 133308 134456 142002 151263 155526 165669 172872 181447 189336 201684 207368 220892 233289 266616 284004 302526 311052 331338 362894 386561 403368 441784 466578 497007 544341 568008 605052 622104 662676 725788 773122 933156 994014 1088682 1159683 1210104 1270129 1325352 1451576 1546244 1633023 1866312 1988028 2177364 2319366 2540258 3092488 3266046 3479049 3810387 3976056 4354728 4638732 5080516 6532092 6958098 7620774 8890903 9277464 10161032 11431161 13064184 13916196 15241548 17781806 22862322 26672709 27832392 30483096 35563612 45724644 53345418 71127224 80018127 91449288 106690836 160036254 213381672 320072508 640145016
- Sum of all divisors σ(n): 2114428680
- Sum of proper divisors (its aliquot sum) s(n): 1474283664
- 640145016 is an abundant number, because the sum of its proper divisors (1474283664) is greater than itself. Its abundance is 834138648
Bases of 640145016
- Binary: 1001100010011111010110011110002
- Hexadecimal: 0x2627D678
- Base-36: AL4J20
Squares and roots of 640145016
- 640145016 squared (6401450162) is 409785641509640256
- 640145016 cubed (6401450163) is 262322236040758925831364096
-
The
square root of 640145016 is 25301.0872493653 -
The
cube root of 640145016 is 861.8389601599
Scales and comparisons
How big is 640145016?- 640,145,016 seconds is equal to 20 years, 18 weeks, 3 days, 2 hours, 3 minutes, 36 seconds.
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To count from 1 to 640,145,016 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 640145016 cubic inches would be around 71.8 feet tall.
Recreational maths with 640145016
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