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42523369 = 711353759
BaseRepresentation
bin1010001000110…
…1101011101001
32222000102002121
42202031223221
541341221434
64115231241
71024304560
oct242155351
988012077
1042523369
1122004489
12122a8521
138a6b275
14590cbd7
153aee7b4
hex288dae9

42523369 has 8 divisors (see below), whose sum is σ = 49029120. Its totient is φ = 36125376.

The previous prime is 42523363. The next prime is 42523373. The reversal of 42523369 is 96332524.

42523369 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 42523369 - 213 = 42515177 is a prime.

It is a super-2 number, since 2×425233692 = 3616473822220322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42523363) 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, 26089 + ... + 27670.

It is an arithmetic number, because the mean of its divisors is an integer number (6128640).

Almost surely, 242523369 is an apocalyptic number.

It is an amenable number.

42523369 is a deficient number, since it is larger than the sum of its proper divisors (6505751).

42523369 is a wasteful number, since it uses less digits than its factorization.

42523369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53879.

The product of its digits is 38880, while the sum is 34.

The square root of 42523369 is about 6520.9944793720. The cubic root of 42523369 is about 349.0405532469.

The spelling of 42523369 in words is "forty-two million, five hundred twenty-three thousand, three hundred sixty-nine".

Divisors: 1 7 113 791 53759 376313 6074767 42523369