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42131034321305 = 531511267405251
BaseRepresentation
bin10011001010001011001010…
…10101011011000110011001
312112011200120012222001222212
421211011211111123012121
521010233324241240210
6225334421401324505
711605603206644126
oct1145054525330631
9175150505861885
1042131034321305
111247374257a986
12488533a196735
131a67c2a0996a7
14a5921d95774d
154d0dd176d805
hex26516555b199

42131034321305 has 8 divisors (see below), whose sum is σ = 50558845806144. Its totient is φ = 33703757710000.

The previous prime is 42131034321253. The next prime is 42131034321307. The reversal of 42131034321305 is 50312343013124.

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

It is not a de Polignac number, because 42131034321305 - 28 = 42131034321049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42131034321307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133545071 + ... + 133860180.

It is an arithmetic number, because the mean of its divisors is an integer number (6319855725768).

Almost surely, 242131034321305 is an apocalyptic number.

It is an amenable number.

42131034321305 is a deficient number, since it is larger than the sum of its proper divisors (8427811484839).

42131034321305 is a wasteful number, since it uses less digits than its factorization.

42131034321305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267436767.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 42131034321305 its reverse (50312343013124), we get a palindrome (92443377334429).

The spelling of 42131034321305 in words is "forty-two trillion, one hundred thirty-one billion, thirty-four million, three hundred twenty-one thousand, three hundred five".

Divisors: 1 5 31511 157555 267405251 1337026255 8426206864261 42131034321305