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57252249594 = 2323180680533
BaseRepresentation
bin110101010100011111…
…111111111111111010
312110210000012121210200
4311110133333333322
51414223033441334
642145030223030
74064523043401
oct652437777772
9173700177720
1057252249594
112230a447561
12b1197b4a76
1355253c5287
142ab1990638
1517513d9799
hexd547ffffa

57252249594 has 12 divisors (see below), whose sum is σ = 124046540826. Its totient is φ = 19084083192.

The previous prime is 57252249577. The next prime is 57252249599. The reversal of 57252249594 is 49594225275.

57252249594 is a `hidden beast` number, since 5 + 7 + 2 + 5 + 2 + 2 + 49 + 594 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50456390625 + 6795858969 = 224625^2 + 82437^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57252249594.

It is not an unprimeable number, because it can be changed into a prime (57252249599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1590340249 + ... + 1590340284.

Almost surely, 257252249594 is an apocalyptic number.

57252249594 is an abundant number, since it is smaller than the sum of its proper divisors (66794291232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57252249594 is a wasteful number, since it uses less digits than its factorization.

57252249594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180680541 (or 3180680538 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The spelling of 57252249594 in words is "fifty-seven billion, two hundred fifty-two million, two hundred forty-nine thousand, five hundred ninety-four".

Divisors: 1 2 3 6 9 18 3180680533 6361361066 9542041599 19084083198 28626124797 57252249594