728996864
728,996,864 is an even composite number composed of four prime numbers multiplied together.
728996864 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-eight divisors.
Prime factorization of 728996864:
210 × 19 × 89 × 421
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 19 × 89 × 421)See below for interesting mathematical facts about the number 728996864 from the Numbermatics database.
Names of 728996864
- Cardinal: 728996864 can be written as Seven hundred twenty-eight million, nine hundred ninety-six thousand, eight hundred sixty-four.
Scientific notation
- Scientific notation: 7.28996864 × 108
Factors of 728996864
Divisors of 728996864
- Number of divisors d(n): 88
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Complete list of divisors:
1 2 4 8 16 19 32 38 64 76 89 128 152 178 256 304 356 421 512 608 712 842 1024 1216 1424 1684 1691 2432 2848 3368 3382 4864 5696 6736 6764 7999 9728 11392 13472 13528 15998 19456 22784 26944 27056 31996 37469 45568 53888 54112 63992 74938 91136 107776 108224 127984 149876 215552 216448 255968 299752 431104 432896 511936 599504 711911 865792 1023872 1199008 1423822 1731584 2047744 2398016 2847644 4095488 4796032 5695288 8190976 9592064 11390576 19184128 22781152 38368256 45562304 91124608 182249216 364498432 728996864
- Sum of all divisors σ(n): 1554901200
- Sum of proper divisors (its aliquot sum) s(n): 825904336
- 728996864 is an abundant number, because the sum of its proper divisors (825904336) is greater than itself. Its abundance is 96907472
Bases of 728996864
- Binary: 1010110111001110011100000000002
- Hexadecimal: 0x2B739C00
- Base-36: C20XKW
Squares and roots of 728996864
- 728996864 squared (7289968642) is 531436427721834496
- 728996864 cubed (7289968643) is 387415489224580011911020544
-
The
square root of 728996864 is 26999.9419258635 -
The
cube root of 728996864 is 899.9987094631
Scales and comparisons
How big is 728996864?- 728,996,864 seconds is equal to 23 years, 9 weeks, 2 days, 11 hours, 7 minutes, 44 seconds.
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To count from 1 to 728,996,864 would take you about thirty-four 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 728996864 cubic inches would be around 75 feet tall.
Recreational maths with 728996864
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