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57287086871670 = 2355177229191833
BaseRepresentation
bin11010000011010001100000…
…11101101001010001110110
321111211120222120201101100000
431001220300131221101312
530002042423214343140
6321501154022532130
715031566263012355
oct1501506035512166
9244746876641300
1057287086871670
1117287354082247
126512755597046
1325c71c27a3566
1410209d198b99c
1569527e02aa30
hex341a30769476

57287086871670 has 192 divisors, whose sum is σ = 163572493331520. Its totient is φ = 14375871664128.

The previous prime is 57287086871659. The next prime is 57287086871699. The reversal of 57287086871670 is 7617868078275.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 298534074 + ... + 298725906.

It is an arithmetic number, because the mean of its divisors is an integer number (851940069435).

Almost surely, 257287086871670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57287086871670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81786246665760).

57287086871670 is an abundant number, since it is smaller than the sum of its proper divisors (106285406459850).

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

57287086871670 is a wasteful number, since it uses less digits than its factorization.

57287086871670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199101 (or 199089 counting only the distinct ones).

The product of its (nonzero) digits is 442552320, while the sum is 72.

The spelling of 57287086871670 in words is "fifty-seven trillion, two hundred eighty-seven billion, eighty-six million, eight hundred seventy-one thousand, six hundred seventy".