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57065243 = 1729115751
BaseRepresentation
bin1101100110101…
…1111100011011
310222101012210112
43121223330123
5104102041433
65355034535
71262021654
oct331537433
9128335715
1057065243
112a236a64
121713ba4b
13ba90221
14781652b
155023348
hex366bf1b

57065243 has 8 divisors (see below), whose sum is σ = 62506080. Its totient is φ = 51856000.

The previous prime is 57065237. The next prime is 57065249. The reversal of 57065243 is 34256075.

It is an interprime number because it is at equal distance from previous prime (57065237) and next prime (57065249).

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 57065243 - 216 = 56999707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57065249) 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, 57383 + ... + 58368.

It is an arithmetic number, because the mean of its divisors is an integer number (7813260).

Almost surely, 257065243 is an apocalyptic number.

57065243 is a deficient number, since it is larger than the sum of its proper divisors (5440837).

57065243 is a wasteful number, since it uses less digits than its factorization.

57065243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115797.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 57065243 is about 7554.1540227877. The cubic root of 57065243 is about 384.9968920871.

It can be divided in two parts, 5 and 7065243, that multiplied together give a triangular number (35326215 = T8405).

The spelling of 57065243 in words is "fifty-seven million, sixty-five thousand, two hundred forty-three".

Divisors: 1 17 29 493 115751 1967767 3356779 57065243