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57485738 = 2171690757
BaseRepresentation
bin1101101101001…
…0100110101010
311000011120121102
43123102212222
5104204020423
65412041402
71265422622
oct333224652
9130146542
1057485738
112a4a3982
1217303262
13bba973b
1478c5882
1550a7c28
hex36d29aa

57485738 has 8 divisors (see below), whose sum is σ = 91300932. Its totient is φ = 27052096.

The previous prime is 57485737. The next prime is 57485759. The reversal of 57485738 is 83758475.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56957209 + 528529 = 7547^2 + 727^2 .

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

It is a super-2 number, since 2×574857382 = 6609220146809288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57485692 and 57485701.

It is not an unprimeable number, because it can be changed into a prime (57485737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845345 + ... + 845412.

Almost surely, 257485738 is an apocalyptic number.

57485738 is a deficient number, since it is larger than the sum of its proper divisors (33815194).

57485738 is a wasteful number, since it uses less digits than its factorization.

57485738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690776.

The product of its digits is 940800, while the sum is 47.

The square root of 57485738 is about 7581.9349772997. The cubic root of 57485738 is about 385.9402173248.

The spelling of 57485738 in words is "fifty-seven million, four hundred eighty-five thousand, seven hundred thirty-eight".

Divisors: 1 2 17 34 1690757 3381514 28742869 57485738