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57007065 = 355371707
BaseRepresentation
bin1101100101110…
…1101111011001
310222021020222210
43121131233121
5104043211230
65353505333
71261360233
oct331355731
9128236883
1057007065
112a1a7285
1217112249
13ba6c8bb
1477dd253
155010eb0
hex365dbd9

57007065 has 16 divisors (see below), whose sum is σ = 92933568. Its totient is φ = 29829696.

The previous prime is 57007063. The next prime is 57007129. The reversal of 57007065 is 56070075.

It is not a de Polignac number, because 57007065 - 21 = 57007063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57007063) 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 15 ways as a sum of consecutive naturals, for example, 35059 + ... + 36648.

It is an arithmetic number, because the mean of its divisors is an integer number (5808348).

Almost surely, 257007065 is an apocalyptic number.

It is an amenable number.

57007065 is a deficient number, since it is larger than the sum of its proper divisors (35926503).

57007065 is a wasteful number, since it uses less digits than its factorization.

57007065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71768.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 57007065 is about 7550.3023118283. The cubic root of 57007065 is about 384.8660128570.

The spelling of 57007065 in words is "fifty-seven million, seven thousand, sixty-five".

Divisors: 1 3 5 15 53 159 265 795 71707 215121 358535 1075605 3800471 11401413 19002355 57007065