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57131072 = 261794987
BaseRepresentation
bin1101100111110…
…0000001000000
310222111120002122
43121330001000
5104111143242
65400303412
71262414615
oct331740100
9128446078
1057131072
112a281469
1217171b68
13bab418b
14783250c
155037ad2
hex367c040

57131072 has 28 divisors (see below), whose sum is σ = 114025680. Its totient is φ = 28400256.

The previous prime is 57131059. The next prime is 57131083. The reversal of 57131072 is 27013175.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8963 + ... + 13949.

Almost surely, 257131072 is an apocalyptic number.

It is an amenable number.

57131072 is a deficient number, since it is larger than the sum of its proper divisors (56894608).

57131072 is a wasteful number, since it uses less digits than its factorization.

57131072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178 (or 5168 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 57131072 is about 7558.5099060595. The cubic root of 57131072 is about 385.1448760434.

The spelling of 57131072 in words is "fifty-seven million, one hundred thirty-one thousand, seventy-two".

Divisors: 1 2 4 8 16 32 64 179 358 716 1432 2864 4987 5728 9974 11456 19948 39896 79792 159584 319168 892673 1785346 3570692 7141384 14282768 28565536 57131072