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42975743 = 672292801
BaseRepresentation
bin1010001111110…
…0000111111111
32222212101122012
42203330013333
542000210433
64133041435
71031200466
oct243740777
988771565
1042975743
1122293348
121248627b
138b99145
1459c99dd
153b8d848
hex28fc1ff

42975743 has 8 divisors (see below), whose sum is σ = 43823280. Its totient is φ = 42134400.

The previous prime is 42975733. The next prime is 42975773. The reversal of 42975743 is 34757924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42975743 - 210 = 42974719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42975743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42975733) 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 7 ways as a sum of consecutive naturals, for example, 13943 + ... + 16743.

It is an arithmetic number, because the mean of its divisors is an integer number (5477910).

Almost surely, 242975743 is an apocalyptic number.

42975743 is a deficient number, since it is larger than the sum of its proper divisors (847537).

42975743 is a wasteful number, since it uses less digits than its factorization.

42975743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097.

The product of its digits is 211680, while the sum is 41.

The square root of 42975743 is about 6555.5886844737. The cubic root of 42975743 is about 350.2739161847.

The spelling of 42975743 in words is "forty-two million, nine hundred seventy-five thousand, seven hundred forty-three".

Divisors: 1 67 229 2801 15343 187667 641429 42975743