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57000046 = 228500023
BaseRepresentation
bin1101100101110…
…0000001101110
310222020220100211
43121130001232
5104043000141
65353413034
71261330615
oct331340156
9128226324
1057000046
112a1a1a84
121710a17a
13ba6964c
1477da87c
15500dd81
hex365c06e

57000046 has 4 divisors (see below), whose sum is σ = 85500072. Its totient is φ = 28500022.

The previous prime is 57000037. The next prime is 57000059. The reversal of 57000046 is 64000075.

57000046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 56999990 and 57000026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14250010 + ... + 14250013.

It is an arithmetic number, because the mean of its divisors is an integer number (21375018).

Almost surely, 257000046 is an apocalyptic number.

57000046 is a deficient number, since it is larger than the sum of its proper divisors (28500026).

57000046 is a wasteful number, since it uses less digits than its factorization.

57000046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28500025.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 57000046 is about 7549.8374816946. The cubic root of 57000046 is about 384.8502166546.

Adding to 57000046 its reverse (64000075), we get a palindrome (121000121).

The spelling of 57000046 in words is "fifty-seven million, forty-six", and thus it is an aban number and an uban number.

Divisors: 1 2 28500023 57000046