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42069293 = 73122651
BaseRepresentation
bin1010000001111…
…0110100101101
32221011100012222
42200132310231
541232204133
64101405125
71020404000
oct240366455
987140188
1042069293
1121824312
12121097a5
13893c696
145831537
153a5ee98
hex281ed2d

42069293 has 8 divisors (see below), whose sum is σ = 49060800. Its totient is φ = 36059100.

The previous prime is 42069289. The next prime is 42069299. The reversal of 42069293 is 39296024.

42069293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42069293 - 22 = 42069289 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 (42069299) 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, 60983 + ... + 61668.

It is an arithmetic number, because the mean of its divisors is an integer number (6132600).

Almost surely, 242069293 is an apocalyptic number.

It is an amenable number.

42069293 is a deficient number, since it is larger than the sum of its proper divisors (6991507).

42069293 is an equidigital number, since it uses as much as digits as its factorization.

42069293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122672 (or 122658 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 42069293 is about 6486.0845662079. The cubic root of 42069293 is about 347.7937216105.

The spelling of 42069293 in words is "forty-two million, sixty-nine thousand, two hundred ninety-three".

Divisors: 1 7 49 343 122651 858557 6009899 42069293