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57530248 = 237191281
BaseRepresentation
bin1101101101110…
…1011110001000
311000020211122221
43123131132020
5104211431443
65413023424
71265666446
oct333353610
9130224587
1057530248
112a524366
1217324b74
13bbc3a89
1478d7b96
1550b5eed
hex36dd788

57530248 has 8 divisors (see below), whose sum is σ = 107869230. Its totient is φ = 28765120.

The previous prime is 57530201. The next prime is 57530269. The reversal of 57530248 is 84203575.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 15824484 = 6458^2 + 3978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3595633 + ... + 3595648.

Almost surely, 257530248 is an apocalyptic number.

It is an amenable number.

57530248 is a deficient number, since it is larger than the sum of its proper divisors (50338982).

57530248 is a wasteful number, since it uses less digits than its factorization.

57530248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191287 (or 7191283 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 57530248 is about 7584.8696758745. The cubic root of 57530248 is about 386.0398000967.

The spelling of 57530248 in words is "fifty-seven million, five hundred thirty thousand, two hundred forty-eight".

Divisors: 1 2 4 8 7191281 14382562 28765124 57530248