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42928542 = 234264991
BaseRepresentation
bin1010001111000…
…0100110011110
32222202222220000
42203300212132
541442203132
64132035130
71030613046
oct243604636
988688800
1042928542
1122260938
1212462aa6
138b80807
1459b6726
153b7e87c
hex28f099e

42928542 has 20 divisors (see below), whose sum is σ = 96192096. Its totient is φ = 14309460.

The previous prime is 42928541. The next prime is 42928549. The reversal of 42928542 is 24582924.

42928542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×429285423 (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42928497 and 42928506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42928541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 132334 + ... + 132657.

Almost surely, 242928542 is an apocalyptic number.

42928542 is an abundant number, since it is smaller than the sum of its proper divisors (53263554).

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

42928542 is a wasteful number, since it uses less digits than its factorization.

42928542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265005 (or 264996 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 42928542 is about 6551.9876373510. The cubic root of 42928542 is about 350.1456319124.

The spelling of 42928542 in words is "forty-two million, nine hundred twenty-eight thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 264991 529982 794973 1589946 2384919 4769838 7154757 14309514 21464271 42928542