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57064927 = 130743661
BaseRepresentation
bin1101100110101…
…1110111011111
310222101012100211
43121223313133
5104102034202
65355033251
71262021023
oct331536737
9128335324
1057064927
112a2367a7
121713b827
13ba9003a
147816383
1550231d7
hex366bddf

57064927 has 4 divisors (see below), whose sum is σ = 57109896. Its totient is φ = 57019960.

The previous prime is 57064877. The next prime is 57064949. The reversal of 57064927 is 72946075.

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 57064927 - 219 = 56540639 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 57064927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57064967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20524 + ... + 23137.

It is an arithmetic number, because the mean of its divisors is an integer number (14277474).

Almost surely, 257064927 is an apocalyptic number.

57064927 is a deficient number, since it is larger than the sum of its proper divisors (44969).

57064927 is a wasteful number, since it uses less digits than its factorization.

57064927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44968.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 57064927 is about 7554.1331071143. The cubic root of 57064927 is about 384.9961814430.

The spelling of 57064927 in words is "fifty-seven million, sixty-four thousand, nine hundred twenty-seven".

Divisors: 1 1307 43661 57064927