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42130535 = 58426107
BaseRepresentation
bin1010000010110…
…1110001100111
32221021110020012
42200231301213
541241134120
64103000435
71021050356
oct240556147
987243205
1042130535
1121866327
121213911b
138961515
14584999d
153a731c5
hex282dc67

42130535 has 4 divisors (see below), whose sum is σ = 50556648. Its totient is φ = 33704424.

The previous prime is 42130513. The next prime is 42130537. The reversal of 42130535 is 53503124.

42130535 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42130535 - 28 = 42130279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42130535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42130537) 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 3 ways as a sum of consecutive naturals, for example, 4213049 + ... + 4213058.

It is an arithmetic number, because the mean of its divisors is an integer number (12639162).

Almost surely, 242130535 is an apocalyptic number.

42130535 is a deficient number, since it is larger than the sum of its proper divisors (8426113).

42130535 is an equidigital number, since it uses as much as digits as its factorization.

42130535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426112.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 42130535 is about 6490.8038793357. The cubic root of 42130535 is about 347.9624056583.

Adding to 42130535 its reverse (53503124), we get a palindrome (95633659).

The spelling of 42130535 in words is "forty-two million, one hundred thirty thousand, five hundred thirty-five".

Divisors: 1 5 8426107 42130535