661490816
661,490,816 is an even composite number composed of four prime numbers multiplied together.
661490816 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 661490816:
27 × 7 × 239 × 3089
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 239 × 3089)See below for interesting mathematical facts about the number 661490816 from the Numbermatics database.
Names of 661490816
- Cardinal: 661490816 can be written as Six hundred sixty-one million, four hundred ninety thousand, eight hundred sixteen.
Scientific notation
- Scientific notation: 6.61490816 × 108
Factors of 661490816
Divisors of 661490816
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 7 8 14 16 28 32 56 64 112 128 224 239 448 478 896 956 1673 1912 3089 3346 3824 6178 6692 7648 12356 13384 15296 21623 24712 26768 30592 43246 49424 53536 86492 98848 107072 172984 197696 214144 345968 395392 691936 738271 1383872 1476542 2767744 2953084 5167897 5906168 10335794 11812336 20671588 23624672 41343176 47249344 82686352 94498688 165372704 330745408 661490816
- Sum of all divisors σ(n): 1512864000
- Sum of proper divisors (its aliquot sum) s(n): 851373184
- 661490816 is an abundant number, because the sum of its proper divisors (851373184) is greater than itself. Its abundance is 189882368
Bases of 661490816
- Binary: 1001110110110110001100100000002
- Hexadecimal: 0x276D8C80
- Base-36: AXU1KW
Squares and roots of 661490816
- 661490816 squared (6614908162) is 437570099652345856
- 661490816 cubed (6614908163) is 289448602276231576599658496
-
The
square root of 661490816 is 25719.4637580181 -
The
cube root of 661490816 is 871.3138276737
Scales and comparisons
How big is 661490816?- 661,490,816 seconds is equal to 21 years, 1 week, 5 days, 3 hours, 26 minutes, 56 seconds.
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To count from 1 to 661,490,816 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 661490816 cubic inches would be around 72.6 feet tall.
Recreational maths with 661490816
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