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57049543 = 127449209
BaseRepresentation
bin1101100110100…
…0000111000111
310222100102021001
43121220013013
5104101041133
65354434131
71261625125
oct331500707
9128312231
1057049543
112a226191
1217132947
13ba86035
147810915
15501d87d
hex36681c7

57049543 has 4 divisors (see below), whose sum is σ = 57498880. Its totient is φ = 56600208.

The previous prime is 57049541. The next prime is 57049549. The reversal of 57049543 is 34594075.

57049543 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 cyclic number.

It is not a de Polignac number, because 57049543 - 21 = 57049541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57049541) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 224478 + ... + 224731.

It is an arithmetic number, because the mean of its divisors is an integer number (14374720).

Almost surely, 257049543 is an apocalyptic number.

57049543 is a deficient number, since it is larger than the sum of its proper divisors (449337).

57049543 is a wasteful number, since it uses less digits than its factorization.

57049543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449336.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 57049543 is about 7553.1147879534. The cubic root of 57049543 is about 384.9615815940.

The spelling of 57049543 in words is "fifty-seven million, forty-nine thousand, five hundred forty-three".

Divisors: 1 127 449209 57049543