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42879054 = 2364111149
BaseRepresentation
bin1010001110010…
…0100001001110
32222200111000010
42203210201032
541434112204
64131014050
71030315551
oct243444116
988614003
1042879054
1122227739
121243a326
138b6412a
1459a2698
153b6ed89
hex28e484e

42879054 has 16 divisors (see below), whose sum is σ = 85899600. Its totient is φ = 14269440.

The previous prime is 42879037. The next prime is 42879059. The reversal of 42879054 is 45097824.

It is a super-2 number, since 2×428790542 = 3677226543869832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42879059) 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 7 ways as a sum of consecutive naturals, for example, 1729 + ... + 9420.

It is an arithmetic number, because the mean of its divisors is an integer number (5368725).

Almost surely, 242879054 is an apocalyptic number.

42879054 is an abundant number, since it is smaller than the sum of its proper divisors (43020546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42879054 is a wasteful number, since it uses less digits than its factorization.

42879054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11795.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 42879054 is about 6548.2099844156. The cubic root of 42879054 is about 350.0110309449.

The spelling of 42879054 in words is "forty-two million, eight hundred seventy-nine thousand, fifty-four".

Divisors: 1 2 3 6 641 1282 1923 3846 11149 22298 33447 66894 7146509 14293018 21439527 42879054