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57487964 = 2214371991
BaseRepresentation
bin1101101101001…
…1001001011100
311000011200122212
43123103021130
5104204103324
65412055552
71265432252
oct333231134
9130150585
1057487964
112a4a5616
12173045b8
13bbaa761
1478c65d2
1550a870e
hex36d325c

57487964 has 6 divisors (see below), whose sum is σ = 100603944. Its totient is φ = 28743980.

The previous prime is 57487957. The next prime is 57487967. The reversal of 57487964 is 46978475.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57487967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7185992 + ... + 7185999.

It is an arithmetic number, because the mean of its divisors is an integer number (16767324).

Almost surely, 257487964 is an apocalyptic number.

It is an amenable number.

57487964 is a deficient number, since it is larger than the sum of its proper divisors (43115980).

57487964 is a wasteful number, since it uses less digits than its factorization.

57487964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14371995 (or 14371993 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 57487964 is about 7582.0817721784. The cubic root of 57487964 is about 385.9451988029.

The spelling of 57487964 in words is "fifty-seven million, four hundred eighty-seven thousand, nine hundred sixty-four".

Divisors: 1 2 4 14371991 28743982 57487964