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57645868 = 2272058781
BaseRepresentation
bin1101101111100…
…1101100101100
311000110201021011
43123321230230
5104224131433
65415315004
71266660520
oct333715454
9130421234
1057645868
112a5a3215
121737ba64
13bc345a7
147927d80
1550da3cd
hex36f9b2c

57645868 has 12 divisors (see below), whose sum is σ = 115291792. Its totient is φ = 24705360.

The previous prime is 57645857. The next prime is 57645869. The reversal of 57645868 is 86854675.

57645868 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (57645869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029363 + ... + 1029418.

Almost surely, 257645868 is an apocalyptic number.

It is an amenable number.

57645868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57645868 is a wasteful number, since it uses less digits than its factorization.

57645868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058792 (or 2058790 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The square root of 57645868 is about 7592.4876028875. The cubic root of 57645868 is about 386.2982383730.

The spelling of 57645868 in words is "fifty-seven million, six hundred forty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 2058781 4117562 8235124 14411467 28822934 57645868