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43043085 = 325956513
BaseRepresentation
bin1010010000110…
…0100100001101
32222222211000100
42210030210031
542004334320
64134321313
71031601021
oct244144415
988884010
1043043085
11223299a8
12124b9239
138bc09a7
145a06381
153ba3790
hex290c90d

43043085 has 12 divisors (see below), whose sum is σ = 74608092. Its totient is φ = 22956288.

The previous prime is 43043083. The next prime is 43043087. The reversal of 43043085 is 58034034.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43043083) and next prime (43043087).

It can be written as a sum of positive squares in 2 ways, for example, as 16695396 + 26347689 = 4086^2 + 5133^2 .

It is not a de Polignac number, because 43043085 - 21 = 43043083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43043083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 478212 + ... + 478301.

It is an arithmetic number, because the mean of its divisors is an integer number (6217341).

Almost surely, 243043085 is an apocalyptic number.

43043085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43043085 is a deficient number, since it is larger than the sum of its proper divisors (31565007).

43043085 is a wasteful number, since it uses less digits than its factorization.

43043085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956524 (or 956521 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 43043085 is about 6560.7229022418. The cubic root of 43043085 is about 350.4567777591.

The spelling of 43043085 in words is "forty-three million, forty-three thousand, eighty-five".

Divisors: 1 3 5 9 15 45 956513 2869539 4782565 8608617 14347695 43043085