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57143696 = 248940129
BaseRepresentation
bin1101100111111…
…1000110010000
310222112012102012
43121333012100
5104112044241
65400442052
71262466461
oct331770620
9128465365
1057143696
112a28a9a5
1217179328
13bab9b4c
147836d68
15503b6eb
hex367f190

57143696 has 20 divisors (see below), whose sum is σ = 111962700. Its totient is φ = 28250112.

The previous prime is 57143677. The next prime is 57143701. The reversal of 57143696 is 69634175.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 52998400 = 2036^2 + 7280^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 18641 + ... + 21488.

It is an arithmetic number, because the mean of its divisors is an integer number (5598135).

Almost surely, 257143696 is an apocalyptic number.

It is an amenable number.

57143696 is a deficient number, since it is larger than the sum of its proper divisors (54819004).

57143696 is a wasteful number, since it uses less digits than its factorization.

57143696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40226 (or 40220 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 57143696 is about 7559.3449451656. The cubic root of 57143696 is about 385.1732418735.

The spelling of 57143696 in words is "fifty-seven million, one hundred forty-three thousand, six hundred ninety-six".

Divisors: 1 2 4 8 16 89 178 356 712 1424 40129 80258 160516 321032 642064 3571481 7142962 14285924 28571848 57143696