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42530033 = 713235951
BaseRepresentation
bin1010001000111…
…1010011110001
32222000202020102
42202033103301
541341430113
64115322145
71024333160
oct242172361
988022212
1042530033
1122009497
12122b0355
138a71300
1459113d7
153b01758
hex288f4f1

42530033 has 12 divisors (see below), whose sum is σ = 52633728. Its totient is φ = 33649200.

The previous prime is 42530027. The next prime is 42530041. The reversal of 42530033 is 33003524.

42530033 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 42530033 - 24 = 42530017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42529987 and 42530014.

It is not an unprimeable number, because it can be changed into a prime (42530023) 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 11 ways as a sum of consecutive naturals, for example, 16793 + ... + 19158.

It is an arithmetic number, because the mean of its divisors is an integer number (4386144).

Almost surely, 242530033 is an apocalyptic number.

It is an amenable number.

42530033 is a deficient number, since it is larger than the sum of its proper divisors (10103695).

42530033 is a wasteful number, since it uses less digits than its factorization.

42530033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35984 (or 35971 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 42530033 is about 6521.5054243633. The cubic root of 42530033 is about 349.0587854551.

Adding to 42530033 its reverse (33003524), we get a palindrome (75533557).

The spelling of 42530033 in words is "forty-two million, five hundred thirty thousand, thirty-three".

Divisors: 1 7 13 91 169 1183 35951 251657 467363 3271541 6075719 42530033