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57285480017 = 94160877237
BaseRepresentation
bin110101010110011110…
…110000111001010001
312110212022201220101002
4311112132300321101
51414310040330032
642152214351345
74065405355163
oct652636607121
9173768656332
1057285480017
1122327184017
12b12895b555
13552c25b74c
142ab6160933
1517542a0862
hexd567b0e51

57285480017 has 4 divisors (see below), whose sum is σ = 57346358196. Its totient is φ = 57224601840.

The previous prime is 57285479981. The next prime is 57285480089. The reversal of 57285480017 is 71008458275.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46586473921 + 10699006096 = 215839^2 + 103436^2 .

It is a cyclic number.

It is not a de Polignac number, because 57285480017 - 212 = 57285475921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57285480097) 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, 30437678 + ... + 30439559.

It is an arithmetic number, because the mean of its divisors is an integer number (14336589549).

Almost surely, 257285480017 is an apocalyptic number.

It is an amenable number.

57285480017 is a deficient number, since it is larger than the sum of its proper divisors (60878179).

57285480017 is an equidigital number, since it uses as much as digits as its factorization.

57285480017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60878178.

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 57285480017 in words is "fifty-seven billion, two hundred eighty-five million, four hundred eighty thousand, seventeen".

Divisors: 1 941 60877237 57285480017