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42030067 = 409102763
BaseRepresentation
bin1010000001010…
…1001111110011
32221002100102011
42200111033303
541224430232
64100503351
71020151432
oct240251763
987070364
1042030067
11217a78a2
12120aab57
138927881
145821119
153a53547
hex28153f3

42030067 has 4 divisors (see below), whose sum is σ = 42133240. Its totient is φ = 41926896.

The previous prime is 42030047. The next prime is 42030089. The reversal of 42030067 is 76003024.

42030067 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 42030067 - 215 = 41997299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42030047) 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, 50973 + ... + 51790.

It is an arithmetic number, because the mean of its divisors is an integer number (10533310).

Almost surely, 242030067 is an apocalyptic number.

42030067 is a deficient number, since it is larger than the sum of its proper divisors (103173).

42030067 is a wasteful number, since it uses less digits than its factorization.

42030067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103172.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 42030067 is about 6483.0600028073. The cubic root of 42030067 is about 347.6855920785.

The spelling of 42030067 in words is "forty-two million, thirty thousand, sixty-seven".

Divisors: 1 409 102763 42030067