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57143017708 = 2273755157353
BaseRepresentation
bin110101001101111111…
…010100000011101100
312110111101200001211021
4311031333110003230
51414012103031313
642130125103524
74062025431160
oct651577240354
9173441601737
1057143017708
112226381aa77
12b0a90b7ba4
13550889b71a
142aa1278ca0
151746a0e78d
hexd4dfd40ec

57143017708 has 24 divisors (see below), whose sum is σ = 117374849312. Its totient is φ = 23827976064.

The previous prime is 57143017697. The next prime is 57143017793. The reversal of 57143017708 is 80771034175.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27577641 + ... + 27579712.

Almost surely, 257143017708 is an apocalyptic number.

It is an amenable number.

57143017708 is an abundant number, since it is smaller than the sum of its proper divisors (60231831604).

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

57143017708 is a wasteful number, since it uses less digits than its factorization.

57143017708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55157401 (or 55157399 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 57143017708 in words is "fifty-seven billion, one hundred forty-three million, seventeen thousand, seven hundred eight".

Divisors: 1 2 4 7 14 28 37 74 148 259 518 1036 55157353 110314706 220629412 386101471 772202942 1544405884 2040822061 4081644122 8163288244 14285754427 28571508854 57143017708