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57004472 = 2379971021
BaseRepresentation
bin1101100101110…
…1000110111000
310222021010102202
43121131012320
5104043120342
65353445332
71261346540
oct331350670
9128233382
1057004472
112a1a5338
1217110848
13ba6b675
1477dc320
155010332
hex365d1b8

57004472 has 32 divisors (see below), whose sum is σ = 122394720. Its totient is φ = 24382080.

The previous prime is 57004469. The next prime is 57004481. The reversal of 57004472 is 27440075.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55322 + ... + 56342.

It is an arithmetic number, because the mean of its divisors is an integer number (3824835).

Almost surely, 257004472 is an apocalyptic number.

It is an amenable number.

57004472 is an abundant number, since it is smaller than the sum of its proper divisors (65390248).

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

57004472 is a wasteful number, since it uses less digits than its factorization.

57004472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2027 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 57004472 is about 7550.1305948970. The cubic root of 57004472 is about 384.8601774826.

The spelling of 57004472 in words is "fifty-seven million, four thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 997 1021 1994 2042 3988 4084 6979 7147 7976 8168 13958 14294 27916 28588 55832 57176 1017937 2035874 4071748 7125559 8143496 14251118 28502236 57004472