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42235079 = 271155849
BaseRepresentation
bin1010000100011…
…1010011000111
32221110202122012
42201013103013
541303010304
64105124435
71021664225
oct241072307
987422565
1042235079
1121927927
121218971b
138999c93
145875b15
153a9416e
hex28474c7

42235079 has 4 divisors (see below), whose sum is σ = 42391200. Its totient is φ = 42078960.

The previous prime is 42235057. The next prime is 42235103. The reversal of 42235079 is 97053224.

It is a happy number.

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 42235079 - 28 = 42234823 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 (42235279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77654 + ... + 78195.

It is an arithmetic number, because the mean of its divisors is an integer number (10597800).

Almost surely, 242235079 is an apocalyptic number.

42235079 is a deficient number, since it is larger than the sum of its proper divisors (156121).

42235079 is a wasteful number, since it uses less digits than its factorization.

42235079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156120.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 42235079 is about 6498.8521294149. The cubic root of 42235079 is about 348.2499827789.

The spelling of 42235079 in words is "forty-two million, two hundred thirty-five thousand, seventy-nine".

Divisors: 1 271 155849 42235079