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57003664 = 243562729
BaseRepresentation
bin1101100101110…
…0111010010000
310222021002022211
43121130322100
5104043104124
65353441504
71261344304
oct331347220
9128232284
1057003664
112a1a4773
1217110294
13ba6b1a3
1477dbd04
15500ee94
hex365ce90

57003664 has 10 divisors (see below), whose sum is σ = 110444630. Its totient is φ = 28501824.

The previous prime is 57003649. The next prime is 57003679. The reversal of 57003664 is 46630075.

57003664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57003649) and next prime (57003679).

It can be written as a sum of positive squares in only one way, i.e., 52128400 + 4875264 = 7220^2 + 2208^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1781349 + ... + 1781380.

It is an arithmetic number, because the mean of its divisors is an integer number (11044463).

Almost surely, 257003664 is an apocalyptic number.

It is an amenable number.

57003664 is a deficient number, since it is larger than the sum of its proper divisors (53440966).

57003664 is a wasteful number, since it uses less digits than its factorization.

57003664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562737 (or 3562731 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 57003664 is about 7550.0770856992. The cubic root of 57003664 is about 384.8583590961.

The spelling of 57003664 in words is "fifty-seven million, three thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 3562729 7125458 14250916 28501832 57003664