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42523061 = 717933937
BaseRepresentation
bin1010001000110…
…1100110110101
32222000101200012
42202031212311
541341214221
64115230005
71024303640
oct242154665
988011605
1042523061
1122004229
12122a8305
138a6b099
14590ca57
153aee65b
hex288d9b5

42523061 has 8 divisors (see below), whose sum is σ = 48870720. Its totient is φ = 36243648.

The previous prime is 42523057. The next prime is 42523079. The reversal of 42523061 is 16032524.

42523061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42523061 - 22 = 42523057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42523031) 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 7 ways as a sum of consecutive naturals, for example, 15716 + ... + 18221.

It is an arithmetic number, because the mean of its divisors is an integer number (6108840).

Almost surely, 242523061 is an apocalyptic number.

It is an amenable number.

42523061 is a deficient number, since it is larger than the sum of its proper divisors (6347659).

42523061 is a wasteful number, since it uses less digits than its factorization.

42523061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34123.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42523061 is about 6520.9708632994. The cubic root of 42523061 is about 349.0397105358.

Adding to 42523061 its reverse (16032524), we get a palindrome (58555585).

The spelling of 42523061 in words is "forty-two million, five hundred twenty-three thousand, sixty-one".

Divisors: 1 7 179 1253 33937 237559 6074723 42523061