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42380080 = 245529751
BaseRepresentation
bin1010000110101…
…0101100110000
32221202010112121
42201222230300
541322130310
64112204024
71023140041
oct241525460
987663477
1042380080
1121a16866
1212239614
138a1ac92
1458b28c8
153ac20da
hex286ab30

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".

Divisors: 1 2 4 5 8 10 16 20 40 80 529751 1059502 2119004 2648755 4238008 5297510 8476016 10595020 21190040 42380080