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42236141 = 137308293
BaseRepresentation
bin1010000100011…
…1100011101101
32221110211002112
42201013203231
541303024031
64105133405
71022000303
oct241074355
987424075
1042236141
1121928702
121218a265
13899a5cc
145876273
153a9462b
hex28478ed

42236141 has 4 divisors (see below), whose sum is σ = 42544572. Its totient is φ = 41927712.

The previous prime is 42236111. The next prime is 42236147. The reversal of 42236141 is 14163224.

42236141 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 can be written as a sum of positive squares in 2 ways, for example, as 8352100 + 33884041 = 2890^2 + 5821^2 .

It is a cyclic number.

It is not a de Polignac number, because 42236141 - 214 = 42219757 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 (42236147) 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, 154010 + ... + 154283.

It is an arithmetic number, because the mean of its divisors is an integer number (10636143).

Almost surely, 242236141 is an apocalyptic number.

It is an amenable number.

42236141 is a deficient number, since it is larger than the sum of its proper divisors (308431).

42236141 is a wasteful number, since it uses less digits than its factorization.

42236141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308430.

The product of its digits is 1152, while the sum is 23.

The square root of 42236141 is about 6498.9338356380. The cubic root of 42236141 is about 348.2529016668.

Adding to 42236141 its reverse (14163224), we get a palindrome (56399365).

It can be divided in two parts, 422 and 36141, that added together give a palindrome (36563).

The spelling of 42236141 in words is "forty-two million, two hundred thirty-six thousand, one hundred forty-one".

Divisors: 1 137 308293 42236141