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57478895 = 5191673623
BaseRepresentation
bin1101101101000…
…0111011101111
311000011020012222
43123100323233
5104203311040
65411545555
71265363645
oct333207357
9130136188
1057478895
112a499821
12172bb2bb
13bba65a6
1478c3195
1550a5bb5
hex36d0eef

57478895 has 16 divisors (see below), whose sum is σ = 73059840. Its totient is φ = 43290144.

The previous prime is 57478877. The next prime is 57478901. The reversal of 57478895 is 59887475.

It is a cyclic number.

It is not a de Polignac number, because 57478895 - 212 = 57474799 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 14054 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (4566240).

Almost surely, 257478895 is an apocalyptic number.

57478895 is a deficient number, since it is larger than the sum of its proper divisors (15580945).

57478895 is a wasteful number, since it uses less digits than its factorization.

57478895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814.

The product of its digits is 2822400, while the sum is 53.

The square root of 57478895 is about 7581.4836938425. The cubic root of 57478895 is about 385.9249028381.

The spelling of 57478895 in words is "fifty-seven million, four hundred seventy-eight thousand, eight hundred ninety-five".

Divisors: 1 5 19 95 167 835 3173 3623 15865 18115 68837 344185 605041 3025205 11495779 57478895