Base | Representation |
---|---|
bin | 1010000110101… |
… | …0101100110000 |
3 | 2221202010112121 |
4 | 2201222230300 |
5 | 41322130310 |
6 | 4112204024 |
7 | 1023140041 |
oct | 241525460 |
9 | 87663477 |
10 | 42380080 |
11 | 21a16866 |
12 | 12239614 |
13 | 8a1ac92 |
14 | 58b28c8 |
15 | 3ac20da |
hex | 286ab30 |
42380080 has 20 divisors (see below), whose sum is σ = 98533872. Its totient is φ = 16952000.
The previous prime is 42380057. The next prime is 42380081. The reversal of 42380080 is 8008324.
It is a tau number, because it is divible by the number of its divisors (20).
It is not an unprimeable number, because it can be changed into a prime (42380081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264796 + ... + 264955.
Almost surely, 242380080 is an apocalyptic number.
42380080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
42380080 is an abundant number, since it is smaller than the sum of its proper divisors (56153792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42380080 is a wasteful number, since it uses less digits than its factorization.
42380080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 529764 (or 529758 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 25.
The square root of 42380080 is about 6509.9984639015. The cubic root of 42380080 is about 348.6480635434.
The spelling of 42380080 in words is "forty-two million, three hundred eighty thousand, eighty".
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