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57044487057 = 327916812909
BaseRepresentation
bin110101001000000111…
…011100101110010001
312110020112021012011220
4311020013130232101
51413311342041212
642112245155253
74056421065615
oct651007345621
9173215235156
1057044487057
1122213142488
12b0800bbb29
1354c135096c
142a9214b345
15173d04a38c
hexd481dcb91

57044487057 has 8 divisors (see below), whose sum is σ = 76086578880. Its totient is φ = 38016026640.

The previous prime is 57044487043. The next prime is 57044487079. The reversal of 57044487057 is 75078444075.

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

It is not a de Polignac number, because 57044487057 - 222 = 57040292753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57044487007) 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, 3398082 + ... + 3414827.

It is an arithmetic number, because the mean of its divisors is an integer number (9510822360).

Almost surely, 257044487057 is an apocalyptic number.

It is an amenable number.

57044487057 is a deficient number, since it is larger than the sum of its proper divisors (19042091823).

57044487057 is a wasteful number, since it uses less digits than its factorization.

57044487057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815703.

The product of its (nonzero) digits is 4390400, while the sum is 51.

The spelling of 57044487057 in words is "fifty-seven billion, forty-four million, four hundred eighty-seven thousand, fifty-seven".

Divisors: 1 3 2791 8373 6812909 20438727 19014829019 57044487057