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13260285388 = 227587806783
BaseRepresentation
bin11000101100101111…
…11110010111001100
31021020010120021220001
430112113332113030
5204124113113023
610031445534044
7646413365110
oct142627762714
937203507801
1013260285388
1156950a3749
1226a0a14324
1313342a5b1c
148db161740
155292186ad
hex3165fe5cc

13260285388 has 24 divisors (see below), whose sum is σ = 26565783552. Its totient is φ = 5673291024.

The previous prime is 13260285373. The next prime is 13260285391. The reversal of 13260285388 is 88358206231.

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, 386956 + ... + 419827.

It is an arithmetic number, because the mean of its divisors is an integer number (1106907648).

Almost surely, 213260285388 is an apocalyptic number.

It is an amenable number.

13260285388 is an abundant number, since it is smaller than the sum of its proper divisors (13305498164).

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

13260285388 is a wasteful number, since it uses less digits than its factorization.

13260285388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807381 (or 807379 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 13260285388 in words is "thirteen billion, two hundred sixty million, two hundred eighty-five thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 587 1174 2348 4109 8218 16436 806783 1613566 3227132 5647481 11294962 22589924 473581621 947163242 1894326484 3315071347 6630142694 13260285388