667968990
667,968,990 is an even composite number composed of seven prime numbers multiplied together.
667968990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 667968990:
2 × 3 × 5 × 13 × 23 × 113 × 659
See below for interesting mathematical facts about the number 667968990 from the Numbermatics database.
Names of 667968990
- Cardinal: 667968990 can be written as Six hundred sixty-seven million, nine hundred sixty-eight thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 6.6796899 × 108
Factors of 667968990
Divisors of 667968990
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 5 6 10 13 15 23 26 30 39 46 65 69 78 113 115 130 138 195 226 230 299 339 345 390 565 598 659 678 690 897 1130 1318 1469 1495 1695 1794 1977 2599 2938 2990 3295 3390 3954 4407 4485 5198 6590 7345 7797 8567 8814 8970 9885 12995 14690 15157 15594 17134 19770 22035 25701 25990 30314 33787 38985 42835 44070 45471 51402 67574 74467 75785 77970 85670 90942 101361 128505 148934 151570 168935 197041 202722 223401 227355 257010 337870 372335 394082 446802 454710 506805 591123 744670 968071 985205 1013610 1117005 1182246 1712741 1936142 1970410 2234010 2904213 2955615 3425482 4840355 5138223 5808426 5911230 8563705 9680710 10276446 14521065 17127410 22265633 25691115 29042130 44531266 51382230 66796899 111328165 133593798 222656330 333984495 667968990
- Sum of all divisors σ(n): 1820206080
- Sum of proper divisors (its aliquot sum) s(n): 1152237090
- 667968990 is an abundant number, because the sum of its proper divisors (1152237090) is greater than itself. Its abundance is 484268100
Bases of 667968990
- Binary: 1001111101000001100101110111102
- Hexadecimal: 0x27D065DE
- Base-36: B1OW66
Squares and roots of 667968990
- 667968990 squared (6679689902) is 446182571601620100
- 667968990 cubed (6679689903) is 298036121708336860560699000
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The
square root of 667968990 is 25845.0960532167 -
The
cube root of 667968990 is 874.1489368409
Scales and comparisons
How big is 667968990?- 667,968,990 seconds is equal to 21 years, 12 weeks, 3 days, 2 hours, 56 minutes, 30 seconds.
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To count from 1 to 667,968,990 would take you about thirty-one 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 667968990 cubic inches would be around 72.8 feet tall.
Recreational maths with 667968990
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