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57164503181 = 483111832851
BaseRepresentation
bin110101001111010001…
…010001100010001101
312110112220002122100112
4311033101101202031
51414033103100211
642132213405405
74062406155062
oct651721214215
9173486078315
1057164503181
1122274965365
12b0b4339865
135510182016
142aa406cc69
15174885588b
hexd4f45188d

57164503181 has 4 divisors (see below), whose sum is σ = 57176340864. Its totient is φ = 57152665500.

The previous prime is 57164503169. The next prime is 57164503199. The reversal of 57164503181 is 18130546175.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57164503181 - 230 = 56090761357 is a prime.

It is a super-3 number, since 3×571645031813 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57164503111) 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 3 ways as a sum of consecutive naturals, for example, 5911595 + ... + 5921256.

It is an arithmetic number, because the mean of its divisors is an integer number (14294085216).

Almost surely, 257164503181 is an apocalyptic number.

It is an amenable number.

57164503181 is a deficient number, since it is larger than the sum of its proper divisors (11837683).

57164503181 is a wasteful number, since it uses less digits than its factorization.

57164503181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11837682.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 57164503181 in words is "fifty-seven billion, one hundred sixty-four million, five hundred three thousand, one hundred eighty-one".

Divisors: 1 4831 11832851 57164503181