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42231037 = 108738851
BaseRepresentation
bin1010000100011…
…0010011111101
32221110120002111
42201012103331
541302343122
64105054021
71021646362
oct241062375
987416074
1042231037
1121924892
1212187311
1389981a4
145874469
153a92d77
hex28464fd

42231037 has 4 divisors (see below), whose sum is σ = 42270976. Its totient is φ = 42191100.

The previous prime is 42231019. The next prime is 42231041. The reversal of 42231037 is 73013224.

42231037 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42231037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42230999 and 42231017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231067) 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, 18339 + ... + 20512.

It is an arithmetic number, because the mean of its divisors is an integer number (10567744).

Almost surely, 242231037 is an apocalyptic number.

It is an amenable number.

42231037 is a deficient number, since it is larger than the sum of its proper divisors (39939).

42231037 is a wasteful number, since it uses less digits than its factorization.

42231037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39938.

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

The square root of 42231037 is about 6498.5411439799. The cubic root of 42231037 is about 348.2388729671.

The spelling of 42231037 in words is "forty-two million, two hundred thirty-one thousand, thirty-seven".

Divisors: 1 1087 38851 42231037