668440000
668,440,000 is an even composite number composed of four prime numbers multiplied together.
668440000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred forty divisors.
Prime factorization of 668440000:
26 × 54 × 17 × 983
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 17 × 983)See below for interesting mathematical facts about the number 668440000 from the Numbermatics database.
Names of 668440000
- Cardinal: 668440000 can be written as Six hundred sixty-eight million, four hundred forty thousand.
Scientific notation
- Scientific notation: 6.6844 × 108
Factors of 668440000
Divisors of 668440000
- Number of divisors d(n): 140
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Complete list of divisors:
1 2 4 5 8 10 16 17 20 25 32 34 40 50 64 68 80 85 100 125 136 160 170 200 250 272 320 340 400 425 500 544 625 680 800 850 983 1000 1088 1250 1360 1600 1700 1966 2000 2125 2500 2720 3400 3932 4000 4250 4915 5000 5440 6800 7864 8000 8500 9830 10000 10625 13600 15728 16711 17000 19660 20000 21250 24575 27200 31456 33422 34000 39320 40000 42500 49150 62912 66844 68000 78640 83555 85000 98300 122875 133688 136000 157280 167110 170000 196600 245750 267376 314560 334220 340000 393200 417775 491500 534752 614375 668440 680000 786400 835550 983000 1069504 1228750 1336880 1572800 1671100 1966000 2088875 2457500 2673760 3342200 3932000 4177750 4915000 5347520 6684400 7864000 8355500 9830000 10444375 13368800 16711000 19660000 20888750 26737600 33422000 39320000 41777500 66844000 83555000 133688000 167110000 334220000 668440000
- Sum of all divisors σ(n): 1756800144
- Sum of proper divisors (its aliquot sum) s(n): 1088360144
- 668440000 is an abundant number, because the sum of its proper divisors (1088360144) is greater than itself. Its abundance is 419920144
Bases of 668440000
- Binary: 1001111101011110010101110000002
- Hexadecimal: 0x27D795C0
- Base-36: B1YZLS
Squares and roots of 668440000
- 668440000 squared (6684400002) is 446812033600000000
- 668440000 cubed (6684400003) is 298667035739584000000000000
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The
square root of 668440000 is 25854.2066209737 -
The
cube root of 668440000 is 874.3543536387
Scales and comparisons
How big is 668440000?- 668,440,000 seconds is equal to 21 years, 13 weeks, 1 day, 13 hours, 46 minutes, 40 seconds.
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To count from 1 to 668,440,000 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 668440000 cubic inches would be around 72.9 feet tall.
Recreational maths with 668440000
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