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42703839 = 3217327427
BaseRepresentation
bin1010001011100…
…1101111011111
32222100120122200
42202321233133
541413010324
64123142543
71025655663
oct242715737
988316580
1042703839
1122118032
1212374a53
138b02459
1459588a3
153b37ec9
hex28b9bdf

42703839 has 12 divisors (see below), whose sum is σ = 62042136. Its totient is φ = 28303632.

The previous prime is 42703823. The next prime is 42703841. The reversal of 42703839 is 93830724.

42703839 is a `hidden beast` number, since 4 + 270 + 383 + 9 = 666.

It is not a de Polignac number, because 42703839 - 24 = 42703823 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42703819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12157 + ... + 15270.

It is an arithmetic number, because the mean of its divisors is an integer number (5170178).

Almost surely, 242703839 is an apocalyptic number.

42703839 is a deficient number, since it is larger than the sum of its proper divisors (19338297).

42703839 is a wasteful number, since it uses less digits than its factorization.

42703839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27606 (or 27603 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 42703839 is about 6534.8174419795. The cubic root of 42703839 is about 349.5336346393.

The spelling of 42703839 in words is "forty-two million, seven hundred three thousand, eight hundred thirty-nine".

Divisors: 1 3 9 173 519 1557 27427 82281 246843 4744871 14234613 42703839