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57072927 = 3171119077
BaseRepresentation
bin1101100110110…
…1110100011111
310222101121100010
43121231310133
5104102313202
65355134303
71262053242
oct331556437
9128347303
1057072927
112a24180a
1217144393
13ba93882
147819259
15502576c
hex366dd1f

57072927 has 8 divisors (see below), whose sum is σ = 80573616. Its totient is φ = 35810432.

The previous prime is 57072887. The next prime is 57072929. The reversal of 57072927 is 72927075.

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

It is not a de Polignac number, because 57072927 - 212 = 57068831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57072929) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 559488 + ... + 559589.

It is an arithmetic number, because the mean of its divisors is an integer number (10071702).

Almost surely, 257072927 is an apocalyptic number.

57072927 is a deficient number, since it is larger than the sum of its proper divisors (23500689).

57072927 is a wasteful number, since it uses less digits than its factorization.

57072927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119097.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 57072927 is about 7554.6626000107. The cubic root of 57072927 is about 385.0141716265.

The spelling of 57072927 in words is "fifty-seven million, seventy-two thousand, nine hundred twenty-seven".

Divisors: 1 3 17 51 1119077 3357231 19024309 57072927