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57506980240 = 245718837253
BaseRepresentation
bin110101100011101011…
…101110000110010000
312111102202112021120001
4311203223232012100
51420233241331430
642230210055344
74104035160343
oct654353560620
9174382467501
1057506980240
1122430211456
12b18ab7a554
135566102c78
142ad773c45a
1517689553ca
hexd63aee190

57506980240 has 20 divisors (see below), whose sum is σ = 133703729244. Its totient is φ = 23002792064.

The previous prime is 57506980217. The next prime is 57506980253. The reversal of 57506980240 is 4208960575.

57506980240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6635079936 + 50871900304 = 81456^2 + 225548^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 359418547 + ... + 359418706.

Almost surely, 257506980240 is an apocalyptic number.

It is an amenable number.

57506980240 is an abundant number, since it is smaller than the sum of its proper divisors (76196749004).

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

57506980240 is a wasteful number, since it uses less digits than its factorization.

57506980240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718837266 (or 718837260 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 57506980240 in words is "fifty-seven billion, five hundred six million, nine hundred eighty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 718837253 1437674506 2875349012 3594186265 5750698024 7188372530 11501396048 14376745060 28753490120 57506980240