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57355748168 = 237169468521
BaseRepresentation
bin110101011010101010…
…110100001101001000
312111001012221220011012
4311122222310031020
51414431032420133
642203204423052
74100220546455
oct653252641510
9174035856135
1057355748168
1122362908574
12b1483a7a88
135540992334
142ac161282c
15175a530b48
hexd5aab4348

57355748168 has 8 divisors (see below), whose sum is σ = 107542027830. Its totient is φ = 28677874080.

The previous prime is 57355748161. The next prime is 57355748179. The reversal of 57355748168 is 86184755375.

It can be written as a sum of positive squares in only one way, i.e., 52533556804 + 4822191364 = 229202^2 + 69442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×573557481682 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57355748161) 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 as a sum of consecutive naturals, namely, 3584734253 + ... + 3584734268.

Almost surely, 257355748168 is an apocalyptic number.

It is an amenable number.

57355748168 is a deficient number, since it is larger than the sum of its proper divisors (50186279662).

57355748168 is a wasteful number, since it uses less digits than its factorization.

57355748168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169468527 (or 7169468523 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 59.

The spelling of 57355748168 in words is "fifty-seven billion, three hundred fifty-five million, seven hundred forty-eight thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 7169468521 14338937042 28677874084 57355748168