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388330656132212 = 22812991711941409
BaseRepresentation
bin101100001001011110100011…
…0110100000110110001110100
31212220222001022010000220122122
41120102331012310012301310
5401344402140432212322
63453524350213215112
7144536651445435143
oct13022750664066164
91786861263026578
10388330656132212
11102809119699a52
12376790bb031498
131388b567c72091
146bc743841175a
152ed6588e00442
hex1612f46d06c74

388330656132212 has 12 divisors (see below), whose sum is σ = 679578788730660. Its totient is φ = 194165287923456.

The previous prime is 388330656132191. The next prime is 388330656132227. The reversal of 388330656132212 is 212231656033883.

It can be written as a sum of positive squares in 2 ways, for example, as 143542539893776 + 244788116238436 = 11980924^2 + 15645706^2 .

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 3 ways as a sum of consecutive naturals, for example, 26548964 + ... + 38490372.

It is an arithmetic number, because the mean of its divisors is an integer number (56631565727555).

Almost surely, 2388330656132212 is an apocalyptic number.

It is an amenable number.

388330656132212 is a deficient number, since it is larger than the sum of its proper divisors (291248132598448).

388330656132212 is a wasteful number, since it uses less digits than its factorization.

388330656132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20071330 (or 20071328 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 388330656132212 in words is "three hundred eighty-eight trillion, three hundred thirty billion, six hundred fifty-six million, one hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 8129917 11941409 16259834 23882818 32519668 47765636 97082664033053 194165328066106 388330656132212