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57143464 = 2371020419
BaseRepresentation
bin1101100111111…
…1000010101000
310222112012002121
43121333002220
5104112042324
65400441024
71262466010
oct331770250
9128465077
1057143464
112a28a804
1217179174
13bab9a01
147836c40
15503b5e4
hex367f0a8

57143464 has 16 divisors (see below), whose sum is σ = 122450400. Its totient is φ = 24490032.

The previous prime is 57143459. The next prime is 57143467. The reversal of 57143464 is 46434175.

It is not an unprimeable number, because it can be changed into a prime (57143467) 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, 510154 + ... + 510265.

It is an arithmetic number, because the mean of its divisors is an integer number (7653150).

Almost surely, 257143464 is an apocalyptic number.

It is an amenable number.

57143464 is an abundant number, since it is smaller than the sum of its proper divisors (65306936).

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

57143464 is a wasteful number, since it uses less digits than its factorization.

57143464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020432 (or 1020428 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 57143464 is about 7559.3295999050. The cubic root of 57143464 is about 385.1727206126.

The spelling of 57143464 in words is "fifty-seven million, one hundred forty-three thousand, four hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 1020419 2040838 4081676 7142933 8163352 14285866 28571732 57143464