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57687376335220 = 2256147284734701
BaseRepresentation
bin11010001110111011000111…
…00100110001000101110100
321120020212012102222000200001
431013131203210301011310
530030122221320211340
6322405114223201044
715102526651220422
oct1507354344610564
9246225172860601
1057687376335220
1117421096041915
126578249746184
132625b860908b8
141036126380112
156a08ab05129a
hex347763931174

57687376335220 has 24 divisors (see below), whose sum is σ = 123129449164008. Its totient is φ = 22696672656000.

The previous prime is 57687376335203. The next prime is 57687376335293. The reversal of 57687376335220 is 2253367378675.

It is a happy number.

57687376335220 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 4 ways, for example, as 92694673764 + 57594681661456 = 304458^2 + 7589116^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23642366131 + ... + 23642368570.

It is an arithmetic number, because the mean of its divisors is an integer number (5130393715167).

Almost surely, 257687376335220 is an apocalyptic number.

It is an amenable number.

57687376335220 is an abundant number, since it is smaller than the sum of its proper divisors (65442072828788).

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

57687376335220 is a wasteful number, since it uses less digits than its factorization.

57687376335220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47284734771 (or 47284734769 counting only the distinct ones).

The product of its (nonzero) digits is 266716800, while the sum is 64.

The spelling of 57687376335220 in words is "fifty-seven trillion, six hundred eighty-seven billion, three hundred seventy-six million, three hundred thirty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 47284734701 94569469402 189138938804 236423673505 472847347010 945694694020 2884368816761 5768737633522 11537475267044 14421844083805 28843688167610 57687376335220