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57398078 = 2149192611
BaseRepresentation
bin1101101011110…
…1001100111110
311000000010100202
43122331030332
5104143214303
65410123502
71264606223
oct332751476
9130003322
1057398078
112a444031
1217280592
13bb7887a
1478a194a
15508bc88
hex36bd33e

57398078 has 8 divisors (see below), whose sum is σ = 86675400. Its totient is φ = 28506280.

The previous prime is 57398059. The next prime is 57398083. The reversal of 57398078 is 87089375.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 96008 + ... + 96603.

It is an arithmetic number, because the mean of its divisors is an integer number (10834425).

Almost surely, 257398078 is an apocalyptic number.

57398078 is a deficient number, since it is larger than the sum of its proper divisors (29277322).

57398078 is a wasteful number, since it uses less digits than its factorization.

57398078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192762.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 57398078 is about 7576.1519256150. The cubic root of 57398078 is about 385.7439441170.

The spelling of 57398078 in words is "fifty-seven million, three hundred ninety-eight thousand, seventy-eight".

Divisors: 1 2 149 298 192611 385222 28699039 57398078